Bringing this thread back from the dead... How far have people pushed the limits with these vouchers? Just received one in DEN for a MX delay. Coincidentally, I forgot my belt today, so was going to give it a whirl at the Johnston & Murphy in MSP.

Gate agent tells me it will work in Minneapolis and http://bit.ly/V4vek1 says it "can be used to purchase goods or services at most airport merchants, and at near-by hotels & eating establishments." In fact, it makes no mention of food at all...

I might try and buy a gift card somewhere...