My fiance wants to buy his suit instead of rent. Which I think is a good idea. Then one of his groomsmen said he'd like to buy his suit as well because he needs a new gray suit anyways. We have two other guys in the wedding party. I'm having trouble finding a place where we can rent suits opposed to tuxes. I'd rather not have two guys in suits and two guys in tuxes. Is it OK to ask them to buy a charcoal suit? I'm not asking for matching shoes and I'll provide the ties.