To understand the baseball card boom of the late 80s and early 90s, one needs only look at the 1991 Score baseball card set.

There were 11 different subsets within the massive 893-card checklist.

Ken Griffey Jr. appeared on 8 different cards in the set.

Score and the other card manufacturers were in a dogfight throwing anything and everything at the market to come out on top.

However, despite its quirkiness, I think this was one of the better sets of the era in terms of design and the eye appeal of many cards in the set has held up well over time.

It's true, many cards in this set aren't worth anything, but some still do stick out in terms of value.

In this list, I take a look at the top ten most valuable.

Let's jump right in...

Ross Uitts - Owner

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Brief disclaimer: I do want to make it clear that most of the cards from this set do not have any value these days.

Like the 1991 Bowman, Fleer, Leaf, Topps and Upper Deck sets, far too many of them were printed and the market is over-saturated with them.

So, in order for the cards on this list to be worth much, they'll have to be graded by PSA to be in perfect, gem mint condition.

That means the card needs to be basically flawless.

Now that we got that out of the way, let's take a look at the top ten: