If you are even thinking about it, DO IT!
I am a snowboard instructor, and last year. I put over 100 days on these gloves and am still riding them this year. By far the warmest, toughest pair of gloves I've own. My roommate went through three pair, riding maybe once a week, before he was convinced to buy a pair; He will never go back.
If you are asking me if you should buy them... well, does Shawn White kill it in the pipe, but suck at slopestyle?