Are you going to bury it in the garden? Flush it down the toilet?
If you are waiting then I wouldn't spend much, get the MX518, try it for a while, when you get the MX Rev back either sell one or maybe keep both.
Have you tried to RMA the Revolution? Logitech have very good customer service and may be able to offer you a replacement or a discount on your next mouse.
This is assuming that the mouse is within warranty ofcourse.
Deathadder > MX518
My Logitech MX revolution has passed away, I am not sure if I want a cordless mouse or not to be honest.
Anyone have have good recommendations for a replacement?
Oh I have big hands so nothing to small or lightweight!