Well you can always leave it to yahoo answers to get good reliable answers. So this answer might be close, but what does it really cost to build a skatepark?

I came across this article regarding skateboarding slang and thought it was pretty funny so I thought I would publish there idea of what the commonly most used phrases where.

Sick – this means the same as “cool” or for you older guys, “rad”. Pretty much anything can be sick. You can pull off a sick trick, have a sick board, or a skatepark can be sick. It’s one of those slang words like “bad” was a decade ago, meaning the opposite. Along with “sick”, something really cool might get called “ill”, “insane”, “gnar” (short for “gnarly”), or even “rad” or “righteous”.
Stoked – to like something or to be excited. I am stoked that you are reading this. I’m stoked I can land a tre-flip. The word comes from making a fire bigger – when you add fire to it, or fan the flames, you are “stoking” the fire.
Sketchy – not well done, or not trustworthy. A sketchy trick looked badly done (“clean” is the opposite – a clean trick looked flawless). A sketchy person is someone who you don’t want to bring home for dinner. A sketchy skateboard is a piece of junk that might break. I think it’s funny that the shoe company “Sketchers” tries to make shoes that LOOK like skate shoes, but are, in fact, sketchy.
Bail – to bail is to either fall, or to jump off of your board right before falling. It doesn’t get used all the time though – some people just say to fall or crash. The word “bail” is more traditional in skateboarding, but if the people you are around don’t use it, you might sound like you’re trying to hard if you insist on saying “bail” all the time!
Poser - this is someone who looks like a skater, or who claims to be one, but who doesn’t know anything about skating. This term can be pretty hurtful, so don’t use it lightly. And it’s tough to know if someone truly IS a poser – read Posers Vs Slow Learners for more.

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Here is a promo video of Ipath Shoes flow team rider Ryan Ward.

Could you only imagine taking virtually the same Subaru WRX STi that Ken Block drives in those absolutely stunning Gymkhana videos onto the snow as a fully built TRAX vehicle? Well, that is exactly what has come of a new rally-prepped 2009 WRX STi TRAX vehicle built by Vermont SportsCar.

Touted as the world’s fastest snow cat vehicle, the TRAX STi combines two of Ken Block’s favorite things in life: “driving a rally car in the snow and snowboarding in the powder in the backcountry.”

Just in Time for the Holidays, a 400-Horse (-powered) Sleigh

CHERRY HILL, N.J., Nov. 2 — The Subaru WRX STI, when equipped with proper tires, is capable of impressive all-weather performance. But when even snow tires are not enough, Subaru offers a solution – a 400-hp WRX STI equipped with a snow tracks system, as showcased at the 2009 Specialty Equipment Manufacturers Association (SEMA) Show at the Las Vegas Convention Center, Nov. 3-6.

Starting with a rally-prepared 2009 WRX STI, Subaru Rally Team USA’s technical partner, Vermont SportsCar, built the one-off 400-hp TRAX STI envisioned by, and built for, DC Shoes co-founder and SRT USA driver Ken Block. The WRX STI TRAX is ready for the half-pipe, with a Yakima FatCat 4 Snowboard Rack up top, a Yakima Landing Pad rack base and DC Shoes XFB-C Snowboards. Naturally, there is a custom matching sleigh to go with it.

With the exception of the Mattracks rubber track system, the car is rally-prepared and similar in specification Block’s #43 SRT USA competition STI. Starting with a stock 2009 Subaru Impreza WRX STI, Vermont SportsCar stripped the car’s interior bare, lightened the shell and then fully seam-welded it for added strength, also installing a multipoint roll cage manufactured from T45 steel. Major differences from the stock STI include the addition of lightweight carbon/Kevlar RECARO SPA ProRacer competition seats with the Head and Neck Restraint System (HANS), carbon fiber door panels and an onboard fire suppression system.

Under the hood, the ultimate Subaru snow machine sports a 2.5-liter, 4-cylinder, turbocharged and intercooled STI engine tuned with a MOTEC M800 ECU. The engine, which kicks out approximately 400 hp and 400 lb.-ft. of torque, is teamed with a KAPS 5-speed close-ratio dog-engagement gearbox and the Subaru programmable DCCD (Driver Controlled Center Differential) all-wheel drive system. Employing custom machined hubs, the drivetrain – which has been dropped three inches – is mated to Mattracks 105M1-A1 rubber track conversion. The car also features Group N competition rally dampers made by EXE-TC.

And Now for Something Completely Different

The WRX STI TRAX can bring four more friends along for the fun with its one-of-a-kind custom sleigh. Constructed with hand-laid fiberglass using sandwich-core construction, the sleigh runs on custom built steel skis with torsion bar suspension. Yakima FatCat 4 snowboard racks carry Qty 2 DC XFB Snowboards.

Protected beneath the padded roll bars are four heated and embroidered leather RECARO Speed seats with Sabelt 4-point harnesses. For music on the slopes, a marine grade water resistant Alpine digital media receiver is coupled with marine grade Kicker speakers and a 10-inch subwoofer. The rear of the sleigh features a large cooler and a grab-bar for towing snowboarders. Cup holders and LED lighting finish off the interior.

The sleigh also features a carbon fiber dashboard, center tunnel cover and rear-cooler cover. Tucked into a glovebox within the carbon fiber covered dashboard are two Viosport POV.1 camera systems. One camera lens is flush-mounted within the dashboard to film passengers, and the other is mounted high on the roll bar to record action around the sleigh.