I have to be another to disagree with this on principle. I own both a Cyborg FLY5 JOystick, and a Razer Deathadder 3500dpi. I love both and have never had the slightest issue (physical or otherwise) with either of these products. I also used a Razer Carcharias gaming headset for a while before switching for entirely voluntary reasons. I think it's basely unfair for one experience with a faulty product to determine a person's viewpoint on a product. I HATED Windows Vista, but I use Windows 7 and absolutely love it.
Also, in no way does this make me a Razer "fanboy" or whatever (the most overused word in technology)... I have used Logitech products in the past, as well as many other popular brands. I simply am using a Razer product right now and I'm really enjoying it.
Edited by smorgan - 7/27/12 at 1:36pm