what don't pull numbers out of your ***, specially if you are not in the game right now and have been since it started.
A mint condition holo is worth about 2$ if you're lucky, maybe 4 if its mint condition first edition (and holo).
non holo no more than 50 cents (mint condition) and if anybody wants to buy it...
so yeah, you're probably better off keeping it. same with any older cards.