HID's are pretty common across many manufacturers. The bulbs last considerably longer than normal bulbs (3000 hours or so - around 90,000 est. miles). I would expect that with their constant proliferation throughout the auto industry, that replacement lamps (and ballasts) should be around for a very long time.
K&N Typhoon CAI * Flowmaster American Thunder cat-back exhaust * Hurst Short Throw Shifter * Black Phantom Grille * Pioneer AVH-P8400BH - Scosche Dash Kit - Rockford Fosgate 3Sixty.3 - Rockford Fosgate T1000-1bdCP, T400-4, T1D215, T1692, T2652-S - SubThump 15" Camaro box - Dynamat Extreme - Stinger & Kicker RCA's - Monster, Tsunami, Streetwires, Scosche, and Kicker wiring - Stinger Distribution blocks - Tsunami Breakers - Tsunami and Rockford Fosgate set screw terminals