I think I've settled on the Trek FX as being my first bike in 10+ yrs. I was leaning on getting a 7.1 and yesterday I went to another bike shop just to get a fresh opinion before I settled. The guy at the store immediatly directed me towards the 7.2 and skipped the 7.1. I asked him why and he said that the 7.2 was much better. My question is it worth getting a 7.2 over a 7.1 ($80 diff)?