Tuxedo Hunting

My cousins from overseas were recently in town and the older boy was telling me about his prom and party nights. He actually thought of getting a nice tuxedo to see him through these events and asked if there were any shops around that sold it cheaper. However, I found that tuxedos here seem to be harder to find compared to overseas countries. Could it be because there are fewer black tie functions here or do people just tailor their own?