Personal opinion...Logitech G7 is the best mouse i ever came across, and i dont think any of these mice are better then the G7. Yea its wireless, and i play games with it everyday, at least 5hrs a day in BF2(thats just games, then there is average computer use), i dont have to change the batteries everyday, every 2 days...and its so god damn quick, press a button, battery pops out, press a charger button another pops out, then switch, and ur done. takes abt 10 seconds. BTW...i cant use corded mice cause my 42 inch plasma monitor isnt on my desk, its wall mounted and the pc is under it...so the cord would have to be long...