I was there, sat next to a Watford fan and his young son, the boy was really upset when they went 2-0 down so when it reached 75 minutes dad asked son if he wanted to leave, son said yes, they left...
I never ever leave a match early. Especially at Wembley! Paying top dollar to see half the (historic) event?
If you have that level of quality on the bench you always have a chance. Watford's rise in recent seasons has been incredible. They are not really any bigger club than us fan base wise. They've had success in the past obviously in the Elton John / Graham Taylor era, but have largely been a second tier team. They could give City a difficult game in the final.