I doubt it would be the best distribution method :) But it would still be a good idea to put it in some high profile vending machines even if nobody buys it from them. If you saw an MP3 player while you were off to buy some Mike n' Ike, you'd definitely remember that for later if you wanted to buy an MP3 player, and also, very importantly, you'd tell all your friends.

The video probably has a higher return on investment than actually stocking some machines with it, but I can still see it being worth it to stock some vending machines in highly visible places with it.