I wish KISS was more careful with their encores. They played Calling Dr. Love in Toronto. That was part of their regular set last tour. They should have played Strutter or something they hadn't played last time, considering they were rotating the first song of their encore.
Plus, how often do bands do something special on the last date of their tours? The only one I can think of is Opeth playing some Bloodbath songs in Baltimore last year...