Yes, in a heartbeat. Privacy concerns aside (though that is a huge factor!), I tend to use more niche software that isn't supported at all by most of these "smart" devices. I have a phone running Ubuntu Touch and I've preordered the Librem 5, for example.

While I might be willing to try working on support for a new device provided its interfaces are documented, I have little desire to buy an expensive new device knowing I'd have to reverse-engineer the thing before being able to even use it.