Well, I'm using a ThinkPad right now and I don't own a Framework. Even though I tend to like each successive model less and less, I'm kind of resigned to my next laptop being a ThinkPad too :-P.

Whether the market justifies the investment is not a question I can answer, but the Framework looks pretty decent otherwise and if it had a pointing stick keyboard I would buy one and give it a go.

I think I paid about £300 for my TeX Shinobi, so I guess I'd be prepared to pay a similar premium on a laptop.