hi guys how are u all...

i wanna ask about the optical mouse i really love the pc game's and i
play it by the touch mouse in the laptop so after that i buy a desktop
((and its really good))

but i wanna now buy an optical mouse (Razer) so i found :

1000 dpi
2000 dpi
2500 dpi
4000 dpi

so what the different between the 1000 dpi mouse and the 4000 dpi
mouse ???
is it faster or play alone or what ?? because the different is 100
($) ??

Thanx Alot...