South Dakota still has five operating drive-in movie theaters, but if plans go well there will be several more in the next few years.
According to news reports, a two-screen theater at Hermosa on the east edge of the Black Hills is underway, but has been slowed by some permits, etc. Wild Water West theme park on the west edge of Sioux Falls plans to build a 700-car drive-in. A one-or-two-screen theater is proposed for the town of Tea south of Sioux Falls.
It will be interesting to see if these all come to fruition and if there is a resurgence in the nostalgic open-air theater experience.
Here's the existing Winner Drive-In.