I'm just fascinated by seeing Bitcoins enter the public sphere with things like ATM's. Considering still that most people don't know what the hell Bitcoins are.
Buying things from a vending machine using BTC is a very realistic possibility, but not until later down the line. Having said that I think that in the meantime it would make a great novelty in London.
Speaking of novelty: https://bitcointalksearch.org/topic/the-ultimate-bitcoin-mashup-308175
I still say it'll be a great novelty item to have at BitPay's office in Atlanta, home of Coca-Cola.