well my mouse is brand new.. the wire of the mouse is not even straight yet... and i have gamed with it for only a couple of days...after that i got my mx518 so i put it aside for many months... then i got my deathadder with is the greatest mouse of all times... so i don't need it... well the guy who would be selling it for under 3k must have used it like hell... these are overpriced cheap mice from microsoft which hardly last an year...