[mrreality68]

I believe they will keep exploding in value because there are still an under appreciated and undervalued collectable.

The historically important ones are already spiking dramatically over the last year or so.
The current day will be interesting to see what they do. with so many teams and ball parks going digital there are less paper tickets and stubs so not sure what will happen for example when and if Pujols hits homer number 700 or Cabrera gets hit # 3000.

Also in the current day and some more modern as awareness goes up and people save these tickets if available as tickets there will be alot more inventory for sale and depending on demand could keep the costs down if the supply is greater than the demand.