I'm fine with the new wireless mice being a thing because then it shines light on the G303 and it maybe becoming wireless, it is still one of my favorite mice I've tried. The G502 is just a little on the heavy side for me, ergo is nice as heck though.
I have a CS550M Gold I have to get rid of, missing extra cables and box though seeing how I purchased it awhile ago.
Offer me a price I need to sell this relatively quickly.