I miss the times gone by, when Alaska Airlines would give a free RT voucher to anywhere they flew, if you took a bump. My first question, when I got to the gate, was always "Do you need any volunteers?" They quit that a few years ago.
My wife and I got 4 RT vouchers one one return trip to Kodiak one Christmas. We could have had more but she was getting too worn out. Cheapskate me would have stayed for more.. ;0