I honestly think there's a huge market for a consumer grade "pet" robot. Would love to have one of these running around, then I can just turn it off when I leave
Those are consumer-grade robots, with much better software. (They probably upgraded the motor controllers, too. But those are only crappy because hobby servo technology is stuck in the 1970s.)
It is indeed pricey though, IIRC the cost of a Boston Dynamics Spot-like robot came down to around $6-7k. There is still room to drive the price down though.
I'd recommend XGO-mini2. It just finished it's Kickstarter funding for the version 2, which runs on raspberry pi. (disclaimer, I did contribute to their Kickstarter) and optionally also comes with an arm.