very lucky - i have found very few GAs who are willing to substitute credits for the free flight voucher or who will even negotiate (despite the std. instructions)
the $400 bump from BUR even more incredible, given that the airline would not owe you anything for a <2 hour bump, and only $200 for a 2-4 hour bump.
well maybe we'll get lucky this week, i really wouldn't mind missing the flight to DEN to visit mrs. boraxo's friends