I love my G5, it has weights which are SURPRISINGLY helpful, you can make it feel way heavy, or as light as an empty cd case. PLUS it has awesome buttons to adjust your dpi on the fly. I have the blue one with reptile like skin and it feels amazing!!! My hand sometimes gets sweaty but the mouse keeps a great grip. The G5 is 49.99 from newegg, thats where i got it 4 months ago and I havent had a SINGLE problem. My friend has the MX518 and it is ALMOST like the G5 except for the weights and the sandpaper grip. If this mouse broke, I would TOTALLY buy another without even thinking about it. OH YEAH the cable on the G5 is like a rope, so it NEVER gets tangled and is EXTREMELY durable!! The cord is pretty long too. Its longer than average mice cords. HOPE THAT HELPED!!!