These local models can do some of the work the non-frontier models can do but for me, that's not worth much. If I am just using Sonnet 4.6, I can pretty much work all day on the $20/month plan. And Sonnet is still a way more powerful model than a one you could self host on an M2 mac.

If things change to token usage billing for everyone, maybe I'll be singing a different tune but on a subscription, I don't think it makes sense financially.

Fun? Yes. Financially sound? No.