I bought one at a men's consignment shop in what appeared near perfect shape. Going to a local tux place and asking about an off-rental one is a second option. You can likely get it for what I see people are paying for a single rental. You still have to purchase a shirt, etc. Use the outfit twice and you're probably ahead of the game. A pair of plain well shined black shoes and you're done (instead of traditional 'tux' shoes)