De Smet doesn't come with many options, its primary function as a tourist location dedicated namely to that of Laura Ingalls Wilder's heritage. That being said, I highly recommend skipping the local hotel in favor of this beautiful home located just three down from Pa and Ma's final home, circa mid-late 1880's.
The owners are fabulous and friendly, and have obviously done a lot to make this B&B comfortable for its guests. We stayed in the Americana room, complete with a private bathroom (all up-to-date and had plenty of hot water), mini fridge and two queen sized beds.
They've taken a very vintage approach to the decor, as one would expect in a B&B, particularly one tied to such a beloved American story. Breakfast is wonderful, and in a great sunroom that encourages you to make new friends of the other guests. With the location of the home itself within walking distance of many of the sites - including the Surveyor's House, where tours begin - it's just a perfectly fitting place to stay while you discover Laura.