Originally Posted by
TimeWarp
VDB would be a flat 6x of the base fare paid in cash or check (redeemable in terminal). All other aspects would remain the same.
IDB would be a flat 4x of the base fare paid in cash or check (redeemable in the terminal). All other aspects would remain the same.
I have only flown 4 round trips in the last 1.5 years so it might not be the best idea, but it's my 2 cents in voucher form!

If you do that it would make perfect business sense for airlines to sell as many full fare tickets as there are seats on the plane since the cost of those tickets are so much more than the cost of IDBing someone on a super discount fare.