Welcome to the wonderful world of the Midwest. Where beat-up Trons were going to for > $1k three years before the new movie.
That said, the best thing you can do is look at CL and ebay regularly. I had to drive 6 hours round trip, but my last four games were all in the 200-300 range.
Put in a saved-search on ebay for games within a reasonably short distance from you, and have it email you when something pops up.
-Jim
P.S. There's someone near me trying to sell an (albeit very nice) ArcadePC setup for $4000. So I feel your pain.