So, as I look at all the bikes for sale in the flea market, I'm baffled why so many people want to make trades. Can anyone explain this to me? Is it simply the sales tax savings? What are the odds that someone has the exact bike that I want and that I have the bike that he wants? Very slim! For instance, I have an '04 GS 1150 and would love to get on a 1200 GS. Who out there wants to make that trade? This phenom just makes me curious.