Fish 32 Wendy's cups out of the trash, get a free one-way ticket on AirTrans. For 64 cups, you can get a free round trip ticket.
Even if you actually paid for all 64 drinks, at, say 1.25/drink, you'd still be getting an 80-dollar one-way ticket, which isn't bad at all. I may have to stop by the Wendy's dumpster soon...
Sadly, they don't fly to St. Louis, though they do fly out of Houston. Guess I'll have to take a trip elsewhere.
UPDATE_ As Jamie pointed out in the comments, paying for the sodas would net you an 80 dollar round-trip ticket, which is even better.