Firehouse Wine Cellars operates out of Rapid City, not Sioux Falls — worth knowing before you make the drive. That said, if you're crossing South Dakota and a winery inside a historic firehouse sounds like a reasonable detour, it probably is.
They produce and pour their own wines on-site, which puts them in a different lane than a shop that just stocks shelves. Expect tastings, bottles to take home, and a food program that runs pizza alongside the pours. The tourist-attraction tag isn't just algorithmic noise — the building itself carries some weight, and the combination of local wine production with a bar and restaurant setup gives the place more reasons to linger than a standard tasting room.
For Sioux Falls travelers heading west on I-90, Rapid City stops tend to be rushed. Firehouse earns the extra time because you can eat, drink something made on the premises, and leave with a bottle — without piecing that together from three different spots. That's the practical case for it.