Well, unfortunately, there is something every year.... there is a lot of talk of how the ticket sales were not handled well this year. It seems a lot were offered as whole lots to hotels to give/sell to their guests, others say that most Florentines didn't get a chance to buy tickets even though they've been going for the last 30 years to see the final.
Not sure what went on, but to have tickets sell out in less than 10 minutes does seem strange, never heard that happen before.
I wanted to go myself but guess will just go see the parade before and come back home to see it on TV - it is supposed to be streamed live here: http://www.rtv38.com/livetest.html