For me, cords always get in the way, especially in games. I want to have movements in every direction require the same force; I never want to pull down harder to yank the cord out of a position where it's snagging something. And I don't want to lift the mouse to free a cord. Lives depend on it.
Some gamers have a complicated rig to keep the cord in place. (Google "
mouse bungee") Ridiculous. I find the Logitech mice do a good job with battery life and I just charge about once a month, overnight.