Posted By:
AnthonyI work on sets from a few eras at any given time. It's the Davillilo strategy, if a set or era gets hot you focus on another one till it cools down. Saved me tons of money over the years.
All things being equal I go for the cards that come up less often. Keep a library of auction catalogs and after a while you can see what changes hands more often than other things, and jump on something that is rarely seen.