Card shows man...that's where you can get the best bang for your buck as long as you aren't collecting super high-end or super popular players. Mitch pickings tend to be slim, but they're always cheap if/when I find them. I've also had a lot of luck picking up Buckeye autos down here in NC as opposed to the premium they tend to garner back home in Ohio. Great work man!
I collect Michael Jordan, Mitch Richmond, and Ohio State players (football and basketball) in OSU gear. I strongly prefer 90's-era cards and use newer cards primarily for trade bait!