My high school yearbook quote was "Why the heck are there luggage stores in the airport? Has anyone ever been that lat to a flight?!"

But seriously, I don't get it. As previous posters have mentioned, you'll have a tough time carrying it on or checking it. Last time I was in the airport though, I actually needed to buy a bag. That, of course, was the one time I couldn't find a luggage store in the airport!