MGD Gameboy Xchanger - Worth Anything?

[kingofthelobster]

I have a Bung MGD Gameboy Xchanger flash cart writer/cart reader that I bought years ago along a 16M and a 64M flash cart and I came across it the other day while digging through some boxes of video game stuff I had laying around here. It will program flash carts for the original Gameboy and Gameboy Color. Is this worth anything? If so, anyone have a clue how much? I really have no use for it anymore, I can't remember the last time I even touched a Gameboy. Here's a pic:

[kingofthelobster]

Sorry, forgot to include a pic of the two flash carts, but they are in good condition too and are both original manufacturer ones, not some of the cheap ones out there that use compressed memory and tend to get corrupted (3rd party PSX mem cards anyone? I Remember losing quite a few saves to those before I learned my lesson)