Wow! You seem like you have cool friendsIt's not the guitarIt all has to do with how much you play and the quality of the strings you useThe body of the guitar only supports the strings you use and does not affect the length of time you use themYou probably just play more than your friend (thus are a far better player then he)Keep playing because guitarists are hot! Just make sure you keep an extra few strings with you incase.
it has pretty much nothing to do with the guitarthe time your strings last depends on how much you play, how you play, and what kind of strings you useplaying a lot obviously wears the strings out fasteralso, if you play metal your strings well wear out faster than if you play softer stuffI would suggest buying elixer anti-rust stringsi use those and i change strings probably once every 2-3 monthsi play metal for about 1-2 hours every day.
Equal but opposite reactions!A gap for a lift.
