That's an awesome surprise to find.
Here's my Turbo 'surprise' story. A few years ago at the thrift store I found some cheap Turbo games (Splatterhouse, Vasteel, Silent debuggers, Yo bro, Pac land, Victory Run, Keith Courage, Alien Crush) in cases for $4 for two games since they bundle them in twos. This thrift store bags together games in twos and they don't want anyone to open the bags until you check out and pay.
I was super happy just to actually find Turbo games in the wild and for cheap, basically $2 each. So, I go to pay and asked to open each bag of games to check condition and to my surprise, all were empty cases except Victory Run.
Cashier was surprise too, apologized and was going to throw away the empty cases. She ended up letting me take the cases/manuals for free which was a nice consolation.