The original Suzuki GSX1300R Hayabusa is still one seriously quick motorcycle, possessed of enormous acceleration and breathtaking top speed. True, the GSX1300R Hayabusa doesn't quite handle all that power (and weight) too brilliantly sometimes, but it remains a supremely comfortably long range missile, that always delivers a shot of raw adrenaline. The later version is even better.
As a future classic the 1999 'Busa definitely has potential, so buy a nice standard bike and it could prove a modest investment. Original bikes came in black, black and red and the copper and salmon scheme which has become synonymous with the 1999 model and is the colour to go for. But if you just want an experience like no other, for £5500 you simply aren't going to get anything that can rival the big Suzuki.