I also got bumped from LAX-PSP on Thurs. 11/1. We got $250 times 3 tickets, and they put us on a shuttle van to PSP, plus $45 in dinner vouchers. Couldn't spend that much at Chili's! (alcohol not allowed

)
I don't think I would do this again with kids, as the van took longer than advertised.
This was the second bump of our vacation. We later volunteered a third time (DFW-MCI) for $300 each, but at the last minute a connecting flight was late, so 12 people missed their flight, thus no bumping was necessary.