to tell you the truth i am torn with all the models. i am looking at everything from a 7500 on down for myself. my wife is pretty instant she wants nothing better than a 7200 on a women's frame.
the problem for me isn't in understand the weight savings, it is understanding how one component group will improve shifting, reliability, ride quality etc.? the slight weight savings i don't care about as i move up, but i would be willing to move up if the component group would have *noticable* difference. i am having trouble getting anyone to give me a straight answer on this, that isn't vague.
oh well. i think i am going to get a 7300, my wife a 7200 and then at some point in the future i can get a high end bike if i really love riding again. i just wish i hadn't decided to do this purchase while we are "between" model years with little current stock and next to no information on the 2005s.