Should I be concerned with buying an 8-speed road bike over a 9-speed? I would hate to think that I have wasted many hours doing research and test riding various bikes if 8-speed bikes are going the way of the dinosaur. The reason I ask this question is because I've read several posts in another thread (tried to find it again but couldn't) stating that the 8-speed will be obsolete soon because 10-speeds are becomming more prevalent and that replacement parts for an 8-speed bike will be hard to come by. Also that for the money spent to convert an 8-speed to a 9 or 10 speed you could buy a new bike. If this is indeed the case I could live with the time I've wasted but would like to know for sure before I plop my money down.