I have no idea. Honestly. My wife is the banker.
We just bought it last year though, and I've upgraded it with a 10x12 wood shed and a partially complete privacy fence, as well as some ungodly brush removal in the backyard, so I hope like hell it hasn't depreciated in that year. Even for current mortgage problems I'd have a hard time believing it has.
However, the white trash neighbor has moved a few more cars into his 30x60 front yard, eliminating the few blades of grass he had when we moved here. The stench from the German shepherd he let die underneath his house went away finally though. . .
Hook up with a decent realtor and try to move it, now that you've been here awhile I'm sure that you have a better idea of where you'd like to live. You can find some pretty decent deals.