The local BestBuy sells commercial washer and dryer units to anyone who wants one. It may just be that Idaho isn't placing limits on retailers that other places do.
California even restricts shower heads. Last year I wanted to buy a new shower handle and head for the filters I use, but Amazon wouldn't ship to California. That particular shower head uses too much water.
So I waited until I took a planned trip to Arizona, bought one there, and drove it back to Los Angeles. Contraband shower head in my trunk. I feel like I'm smuggling drugs.