One caveat: Toto toilets waste stupid amounts of power. With the heater off , I measure 40-50W at idle across multiple different models. With a heated seat that’s active or with the water heater on, it’s much higher. (A lot of Toto models have a small tank that is kept hot — only the higher end models have an on-demand flow tankless heater.)
For reference here is the model I have. I don’t remember the exact price, but I think it was a fairly mid-range model that cost less than ¥200,000 ($2,000) at the time.
https://search.toto.jp/tr/D08911R_201603.pdf
Edit: just had a look at current prices, and it looks like the MSRP for the same model is about 3x more expensive in the US than Japan. For example, the Neorest RS1 has a list price of ¥317,000 ($2,200) in Japan vs $6,315 in the US. So possibly a midrange model in Japan could be considered high end in the US.