Speaking from my experience, Logitech mice are usually more durable. But the thing I like bout Razer mice is that it feels so nice. The buttons are like so smooth, and the scroll wheel too. It just feels better than my Logitechs.

But I had double-clicking problems with Death Adder. Had to dissemble it and apply WD40 to fix it lol.

I hope their new mice (the naga lol) have better durability. It looks like something that could really help me. My mage has like 30+ keybinds lol.