I like to think bikes are like wine. For the majority of people, when it comes to wine, it is glaringly obvious we know what we DON"T like, same goes for riding a a"bad" bike. But distinguishing between a $15 bottle and a $150 bottle, well....that's a very tough nut to crack. Check this video out by John Cleese, http://www.hulu.com/watch/79439/wine-for-the-confused he conducts a blind test with interesting results.

I think bikes are the same way.....can you tell the difference between a $2000 bike and a $5000 bike? My butt says no....for me at least.