I don't shave but trim WAY down. Armpit hair sucks. It just wastes deodorant and it makes it easier for foul smelling bacteria to grow. The only reason I don't shave is I don't want thicker arm hair growing back in or get shit from "da bros"
I've never really seen a man who shaved his armpits unless it was a swimmer who had his entire body shaved from head to toe. I think my preference would be non-shaved, since shaved armpits are traditionally a women's thing.
Who cares! They'd prefer we have detachable penises as well so they could keep em in their purses til they decide it's time for us to use em, but that don't mean we're gonna pay for the procedure. (Hope I didn't spoil your good mood. ; - )
I shave them every time they reach a certain length (max. 1cm). I find body hair in general gross and feel more comfortable having them shaved off. Arms are an exception but then again, its all about preference.