Any reason to save TOTW collectibles?

Well, if you saved them this long, might as well wait until TOTY promo.

For TOTY, I think you’ll be able to cut them.

Save em for at lease another day to see if they can correspond with TOTY in any way.

I have 63 TOTW collectibles.  I do not need any of these players on my team.  Should I build a player and sell to make a little bit of coin or is there some other reason I may want to save the collectibles?