I had a great deal of "luck" this weekend in Vegas, playing the voucher game.

America West was very oversold on LAS-JFK.
I volunteered 3 times, and picked up $2100
in vouchers, all in one day.

The first flight they was a red-eye friday night, they offered me $1000 and rebooked me on a monday flight, that flight was oversold and they gave $600 and rebooked me on an afternoon flight, that flight had a weight restriction so I pocketed another $500 and ended up taking the red-eye that night.

Sadly, the weight restriction on the saturday night red-eye was lifted just before takeoff and they didnt need my seat.
I would have gladly taken another $500 voucher off their hands

On the outbound portion of the flight, I volunteered twice and pickup up another pair of $300 in vouchers. This for about a
4 1/2 hour delay.

No need to even go near the casino tables when I was doing so well with the airlines.