$40 for the basic ones. They still work great, (I have them on all my toilets at home!) but they definitely aren’t as flashy as the Japanese toilets. Self-cleaning seats, heated seats, heated water for the bidet, etc…
We have plenty of bidets here in the States, they just install them outside the bathrooms and they mount them kind of high so they're kinda awkward to get a good clean angle, though.