My faithful Logitech Mx518 is about to die so I'm looking for a replacement. I've seen the G400 being advertised as its replacement so I'm considering purchasing one. Of course I'd like to make an informed decision so I ask you if there is a reason I SHOULDN'T buy it.
Mind you recommendations on mice are all good and well but being in Argentina and with the high cost of peripherals I might not be able to get that awesome mouse you are telling me about, that's why I'm asking particularly about this one.

Thank you lovely people.