Buy the 7.2 or 7.3. Even if you turn into an athletic rider with multiple bikes, a good hybrid is a versatile, useful machine and you really can't go wrong with a Trek hybrid. Tip--shops aren't identical; bike assembly matters. Buy from a shop that doesn't force 20 minute assemblies on their service departments; try to not price-shop as a shop that's too eager to discount is probably going to give you a second-rate assembly. There isn't a ton of margin in bikes and you very much do get what you pay for.