Monster Bash. Beautifully restored copy with an NOS playfield I held on to for 15 years in case I ever got the game. What a stunning piece of art it was when it was done. Pained me to sell but it just felt too shallow and repetitive (and I have a SS and Creature). Sold after 4 months to make room for AMH.
AMH - fun game, but my wife just didn’t like it. Sold after 6 months if I remember correctly.
Honorable mention to The Hobbit. Sold it before I took delivery.