Second hand 737s would be almost worthless at the moment. Given the clear surplus of aircraft around the world even after COVID19, and the 100s of Max aircraft sitting on the ground - who is going to be buying up these old 73s?
It is the one thing in VAs favour when dealing with the leasing companies - if those companies want to see any cash, they are going to have to come to the table with a good deal. It may be the saving grace for the A330 too - the moronic leases on those aircraft may come back to be something far more reasonable.