I hear you, but also, those places can be extremely fun. Went to a roadside "museum" a few years ago, lots of wax figures, and a huge perfectly scaled miniature of the white house that was actually on display in the white house at some point. I brought family back several times. It was so kitschy and fun! 10/10 would go again. Florida is full of these, not just amusement parks. (Ripleys believe it or not "museum" in Orlando is a total ripoff, not worth the entry fee)

Also locally though there are at least a dozen real museums within an hour of me, don't want to dox myself but literally world class museums of artists you have 100% heard of and then others you've 25% heard of. Really wonderful. Many more if you include the surrounding couple hours.

You vastly underestimate the number of roadside tourist traps.

Also, the US has a lot of "museums" that are operated primarily as tax shelters.

Some collector out there wants to dodge some taxes? He opens up a nonprofit org and starts a 'museum' of his collection display ... open every 3rd Tuesday, between the hours of 10:00PM and 10:15PM ... unless there's a federal holiday anytime in that month, in which case the museum is closed. Then he can do things like dodging property taxes due to the property being a nonprofit museum, counting purchases for his collection as tax-deductible donations to the museum, etc.