Congrats on your find! It seems like the value on shuffle bowls vary widely based on condition, game play and the local market. The ones made in the 50s have the classic styling but the later games in the 60s and 70s generally have regulation scoring and other game features not found on some of the earlier games.

I think the main reason the values vary so much is same reason yours is in your garage. They take up a lot of real estate in a game room and so the pool of buyers tends to be small. I’ve been getting creative with my game room over the last few months (painters tape on the floor and all) trying to figure out how to make one work. I would love to find a nice original 50s shuffle alley.

In any case, there have been other threads where people found games like yours for free or super cheap and invested the time into them. Haven’t seen one yet who said it wasn’t worth it. Most brag on how it’s the most popular game in their lineup. If it was complete and unmolested, I would have a hard time not digging into it. Very few games in this hobby are “investment grade”.

Good luck!