Yes. I think that will matter later on when gameplay is launched.

For now, a lot (most?) people are keeping their cards as singles to make trading easier.

So when we look at these lines:

Minotaur Warrior 3282
Rexxie 6367

It's not really that the minotaur is twice as rare as rexxie, it's just that for whatever reason more of the minotaur have been combined but there is still plenty of supply and the drop rates are roughly the same.

When we get into game mode and a disparity like that exists it will be much more important price-wise