i started with the cards i always wanted to have (rookies)
like Joe Namath, Joe Montana, Payton, Unitas, then went to baseball.
Went hard core with Mickey Mantles, until i hit my whale RC. (see avatar) Still like to get the other A version.
Sold off several items to re-coup my expenses and now back at it hard again.
So i switched back to rookie cards, but nothing to prevail latley. Still have the Mantle urges at times (only because BestDj77 has some nice stuff, he wont sell me)

LOL
I still lookout for a Hank Aaron RC, W.Mays RC/bowman, Clemente RC --finding ones that are nicely centered is my focus there.
Heck, i even found myself in the pre-war stuff, bidding on Ty Cobb and Ruth items. Kinda like the old stuff.