What do you do with your older Dslr.s?

I now have 2 KM 7d.s that I would like to sell and there is almost no market for them unless you give them away..

I find that unlike the film cameras these new computer driven cameras are very expensive to buy and do not hold much value..

I think waiting for a year or two before upgrading is the only way to keep prices under control..you won't take such a big hit.

Except..... I want it now..