I got a ticket last season on the fly - showed up 2 days before a match v athletico bilbao - no probs. 14e face value from the stadium ticket desk. and there was 92,000 at that! it was up in the gods mind you but a great view. it does get fairly windy up there tho. i moved down into the middle tier at 1/2 time and just sat in a seat. nobody moved me along. the only hassle getting tickets is for the big games really. you can also buy tickets from ATM type machines that are dotted about the city. still, best to goto the stadium and do the whole tour etc and get your ticket then. enjoy it - its a great place.