What I really wonder is........how many of the guys who are upset that the Busa isn't a HUGE margin faster than the liter bikes now really twist there Busa's throttle and wind it up.
A ten year old big bore bike is gonna feel a little slow nowadays granted...although get on a stock ZX-11 and say it feels slow...slower maybe...but not slow
But those bikes put out 126 hp stock. The new big bores put out around 160 give or take and are incredibly ridiculously fast. We're talking eat up pavement, crazy fast in just a couple gears, go to jail, lose control ect fast. A Busa stock has more power than you can use in traffic...you have to find a nice deserted back road to have any fun unless you want to go to jail cause' you opened it up in 1st & 2nd from a stoplight
or having 75 mph traffic "standing" in your way before you can get your "top of 2nd gear" jollies.
So I think the only real reasons with todays big bore bikes to need a newer one is stricly the ego thing...power (for most folks) is no longer a valid reason imho. Unless of course you are an on track racer and need every edge you can get...which I doubt the majority of riders are. And if you do start to crave a bit more of that holy sh*t!! feeling all you do is add the ole' sprockets, pipe and pc, or turbo ect and there you go