Air travel has become increasingly annoying and enervating: delayed flights, more restrictive rules on the size of carry-ons (anything bigger than a wallet may force a gate check), delayed or lost luggage, long check-in lines, etc.
George Clooney's entire collection of suits may be less expensive than Lil Jon's chain, but the latter certainly comes with its perks--it's safe to say that a 5-pound "Crunk Ain't Dead" pendant is a bit too conspicuous to be lost at a coat check.