I won't even buy the "holes" in my modern commemoratives set if they ARE graded. I wait to find them in OGP. It's part of the piece, just like the 1951 British Crowns need either a green or maroon box.
If it stays up long term. Frequently they will go up, and sometimes even stay up for awhile after they are issued, but long term most of them are losers and slide back down. (1999 silver proof sets? Issued at $52.95, shot up to $300 and stayed there until after the end of the state quarters and then started slipping. Took almost another decade but they are now back down around issue price or a little less.)