Oh yes, indeedily-doodily! First off, I can have the TriFold sooner than the Fold8. The TriFold, at worst, will still be thinner than my previous Fold 4, yet provide a larger tablet experience. Even now, I wish I had a larger inner screen on the Fold 6 (which the Fold 7 and Fold 8 will improve upon, but nothing like the TriFold).
As long as the TriFold has decent battery life to get me through the day and supports S Pen then it's almost an instant-buy for me. And I much prefer the TriFold design over the Mate XT that exposes the bare screen and hinge too much -- but I guess that's what insurance is for.
As for the $3K price, I'm just glad it isn't $3500. Back in 2020 I paid $1400 for a 1TB iPhone 12 Pro Max that I held for only a year, followed by a 1TB iPhone 13 Pro for also a year. With Black Friday deals you can now score a Fold 7 for what I paid for the iPhone 12PM. So relatively speaking, if I hold onto the TriFold for even just 2 years then $3K isn't as absurd as it seems, especially with early promos and trade-in deals. So yes, I am seriously interested in the TriFold. In the current phone space it's gonna be either the TriFold for me, followed by the Fold 8, or nothing else. While I am glad Apple will enter the fold-space, the rumored size and aspect ratios are a dealbreaker for me.
Another hypothetical is a year from now when the Fold 8 is released. The TriFold will be about 8-9 months old and probably discounted. I'd rather buy the TriFold upon release, but I'm just saying someone would have a difficult decision between a new Fold 8 and discounted TriFold in front of them.