Did that Mullin go for under $10? If so well done! I paid about $25 for mine, but it was the 97-98 SP Authentic Sign of the Times so I knew I was gonna pay a premium for it to try to get as many old school autos as possible.
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!