I agree with you on all counts but in order for the phone to be supported for a long time (both by Purism and by third parties) it needs to be reasonably successful. Otherwise nobody is going to even remember it existed two years from now, much less port and maintain apps for it.
That's my main problem really, I have Spotify, WhatsApp and a couple other closed-source applications on my smartphone that I need in order for said phone to be useful. If there are no ports or alternatives maintained on the Librem I'd just be buying a very expensive paperweight. And I don't think I'm a heavy app user compared to most of my friends who often have a couple social network apps, games etc...
Sibling comments mention that MS could probably make a profitable phone but they don't have the same objectives and I say that it's irrelevant. The problem is third parties and app supports. I need my phone to do more than calling and texting these days, I need decent driving directions, a multimedia player (ideally something that interfaces with Spotify, but I know that's asking for a lot), a chat application that can connect to WhatsApp (I won't convince all of my contacts to switch to Signal, Jabber or IRC) etc...
I need that stuff to be maintained and updated for at least a few years. And ideally after that I'd like to know that I can count on a Librem n+1 being available so that I won't have to change ecosystem once again.
I've bought a few open source/homebrew systems over the years, mainly handheld consoles to run emulators. It works but the software is often rather lackluster and very amateur looking. It's also generally maintained for a little while then the contributors move on to something else. It's fine for a toy emulator console, not so much for a smartphone.
The hardware is not the issue, the ecosystem is.
