Plenty of fools are. Two weeks after my $500 total balance wedding, my maid of honor spent $4000 for her gown alone. She had to admit later that mine was much nicer, lol. The next door neighbors' son had his wedding in Hawaii, so his parents flew out all the guests and put them up in a posh hotel for 5 days.
Some people hold weddings at a resort, expect their guests to pay their own costs, and get offended if some of the people they invite can't/won't shell out that kind of money. Tacky!