WL kinda changes a mouse's function from non-WL. Batteries, possibility of 'skipped' signals..... but not all WL have this issue. Many don't. Assuming laser WL mice are the same in this regard to WL optical, I'd say get a laser mouse if you need it for precision gaming, drawing, or do "surgical manuevers around pixels".
I personally would not get a laser mouse unless it was under $25. I've never used a laser mouse so i don't know how good they are firsthand, but I wouldn't spend more than that anyways just b/c i don't need/want one THAT badly. My Logitech mx510 wired optical mouse is more than sufficent.