The chances are it's the cheapest bona-fide gadget on your desk, and the chances are you don't even need it. For many, the mouse pad is dead.
To some, however, it's a critical piece of gear, essential to success. These people would be gamers, to whom a skipped pixel can mean the difference between life and death. Well, their character's life and death.
ExtremeTech takes an absurdly in-depth look at this most humble product, and the not-so humble prices that some are prepared to pay for a top of the range model (pictured is the $40 Razer eXactMat). And, as in anything, your choice of technology matters:
I play UT with an elderly Logitech MX500 slapped on the plain, unfinished surface of a pine desk. If nothing else, I at least have an excuse for those sub-100 PPH days.
A Glance at Mousing Surfaces [ExtremeTech]