Best non prewar mainstream card to invest on

[BioCRN]

Since the mid-late 90s when graded cards started to gain steam, I've financed a notable chunk of my personal collection buying and storing slabs of guys that I felt would be HOF'rs one day, but are under-represented or under-collected.

Most recently, a decade+ of buying Jim Kaat and Scott Rolen rookies paid off very well.

I'm currently sitting on a years-long collected stack of Jim Leyland 1986-87 graded of 8-10s that were picked up for next to nothing. Billy Wagner is no longer being ignored, nor is he in the HOF yet, but people have starting snagging his stuff and they're no longer a bargain. If I wanted to flip the Wagners I have, I could make a healthy profit, but I'm waiting for the bigger payoff.

It's a lane of collecting that means you're sitting on cards for years (even a decade+), but when the HOF announcement rush starts you're swimming in profit even when inflation adjusted.