I’ve actually spent a fair bit of time in Japan over the years, myself. I’d usually have one of the Toto toilets in my hotel room, and I was certainly a fan. I knew I was going to have to have one one day. They’re expensive, yes, but it’s an investment. You spend a lot of time on the toilet, you don’t want to cheap out.
Yeah Toto are the top end of toilets. I priced their higher end models at over $3K in Toronto. But you can get them on sale for $2K. Still wrestling with that but have the outlet already to go! You can also buy seat attachments for a lot cheaper (even Toto makes seat attachments). There's one company: Luxe that makes them for about $130 (cold water only). I rented a place in Hawaii that had these (lot of places in Hawaii have these because of the number of Japanese tourists). My kids turned it on in their bathroom without knowing how it worked and it sprayed right across the room. Mine had THREE settings: Man. Woman. And a mystery third setting which sent out a jet stream of water strong enough that could probably excise haemorrhoids. And yes, I was stupid enough to try it and yes, I squealed like a pig!
But back to the OP - cleaning a toilet is one of those tasks that should be only be done on an as-needed basis: if it looks clean, it IS clean - after all, you're not eating off of it. But it does bring up a potential biz opportunity for an enterprising outcall service. Imagine having your bathroom cleaned up as a part of the outcall? Cleaning with a Happy Ending, or perhaps the tagline could be: "Our Ladies clean your pipes, then they'll clean your toilet".

