When my mom passed away I cataloged her coin set and I've realized the nice little Proof Commemorative coins she purchased from the US mint over the years are worth a LOT more if they are graded than just left in their nice little boxes with COAs.
**This, of course is if they are graded a PF 70 ULTRA CAMEO, since the coins have never been removed from their "airtite" holders they should grade a 70**
Even if I had to pay up to $50 per coin for grading, I would still be ahead several hundred dollars.
Just wondering... if it were you, would you keep the coins as they are or send them to be graded.
Don't know if it matters, but I don't want to sell the coins..just want to keep passing them on to the next generation.