Sounds like a great collection. I think manager lineup cards as well as dugout lineup cards are quite undervalued. They display great, are legit game-used items and usually feature the handwriting of the manager listing the big names from both teams.

I have a couple dozen or so White Sox dugout lineup cards and nearly the same amount of White Sox manager lineup cards. They're among the coolest collectibles in my collection. What's not to dig about a White Sox vs. Baltimore dugout lineup card with Cal Ripken Jr. on it during his streak? Or a manager's card listing Sammy Sosa as a rookie? Or a dugout card featuring rookie Frank Thomas in the same lineup as Hall of Famer Carlton Fisk?