As the title says I'll be looking to bike to a University campus starting this fall. I bought a used Trek 7.1 FX for $250, but it needs some maintenance to get it up to commuting - new tires, brakes, rear derailleur (orig. was bent), and chain. All told it will cost about $100 to do it myself. My wife isn't convinced that the used bike route is the best option, as I will have to spend more money on it. She wants me to sell it and put the money towards a new bike. I'm thinking that I'll still be ahead even after the repairs. $250+$100 = $350 as opposed to buying the same model new at $470+ tax. The big thing is, if this bike gets stolen I'm not emotionally attached to it at $350. (If that makes sense.) What would you cyclists do?