I think Mayweather should fight still... His style he hasn't taken that much punishment, there are a ton of fights to further solidify his resume. I don't think Floyd will run into the same problems Roy did, I think he would do well to stop taking as many punches off the arms, but besides that if he beat Margarito, Cotto, Berto, etc, etc. He would do a lot for himself financially and legacy wise. I also think a fight with Pacquiao would be exciting and HUGE.