> I do not need to print multi material models. I would prefer something that doesn't phone home and can work offline. Opensource firmware/software and repairability are important.

And your suggestion is Bambu with AMS?

Does OP want to print, or do they want to tinker?

Bambu make excellent machines. There is nothing comparable out of the box, especially at their price points.

OP stated the requirements I quoted above, AMS definitely doesn't make sense, and I don't think Bambu makes sense either.

Before Bambu, Prusa was the 'no tinker just print' brand, though I haven't used one I agree Bambu's taken the lead now, but I think given OP's desire for more openness and repairability etc. Prusa makes more sense.

Fwiw: I have a Prusa Mini, and I'd buy Bambu today, I'm continually tempted by an enclosed model with AMS. But I'm not OP, and I don't think that's right for them with their description.

An AMS is useful just so you can have 4 different filaments ready to go at any time. Doesn't need to be for multi material models. I have an A1 with the AMS lite and a Prusa mk3s, and manually changing materials is a chore.

Fair point, I don't print enough (nevermind change material often enough) that it's such a bother that I thought of it. I expected the argument to be keeping it dry, to which I'd have said a drybox and/or dehumidifier is better and (could be) cheaper.

Not the OP, but AMS can be useful for loading and unloading filament, as well as automatically continuing a print job when you run out of one spool of the same filament. It's not just for multi-color prints, although that's obviously the primary use case.