Cashless Vending

I'm currently at a Holiday Inn around College Park, MD, and when I went up the hallway to grab a soda from the vending machine I noticed a credit card reader. This reader accepted both swiped and contact cards, and you could purchase multiple sodas per transaction before pushing the Complete button. If this spreads, it'll be one less reason for me to carry cash :-)

I was first intrigued by the idea when I saw card readers on VCU's vending machines in the student commons, but they only read the VCU cards. I hope the idea catches on a larger scale.