Several years ago, I was scheduled on the then available PBI-BOS nonstop. The MD88 aircraft was actually coming down from BOS. It went mechanical in BOS... they actually offloaded the passengers and luggage to another MD88 and arrived in PBI almost 2 hours late. On the way up to BOS, we circle over PVD for exactly 8 minutes... the plane arrives in BOS very late, and there are passengers waiting to take that plane down to FLL, now leaving BOS about 2 hours late. The GIDS display in BOS said the departure delay was to to "ATC"... so a 2 hour mechanical delay followed by a 10 minute ATC delay, and now it was all ATC's fault.