I think it all boils down to what you like. I have a wireless mouse and I game... and I like it. In fact, I feel like I need something heavy in my hand for me to work well sometimes. Once you get used to it, it does not slow you down at all. However, if you have a wire mouse, it will be much lighter and easier to work with. If the wire doesn't really bother you, then I wouldn't worry about it. However, if you have your heart set on a wireless mouse, then go with it. No point in making yourself unhappy over this.