I impulse-bought the 2013 version when on sale for $35 about a year ago. It's never hiccuped. Love the feel and the rubber bits on the sides at the bottom.
Always been against spending stupid money on mice and keyboards but I'm happy with it. Although that hasnt stopped me from second guessing my purchase. I got out the old Logitech mouse just to try them side by side a few days ago and the Razer is so much better.
Razer just has a stigma like OCZ SSDs, etc. Almost certainly not deserved to the extent that people cry about them but, probably some truth to it, too. That probably reflects more on the fundamental challenges of QC in China factories, as anything else. Razer undeniably designs nice stuff and companies with real QC problems rarely survive, let alone lead in sales. You get one chance to make a first impression.