90% of the demand? Probably.
That said, if you’re rolling a DIY remotely manageable industrial automation project? It’s the obvious choice.
Hard to beat being able to apt-get openssh, python, etc. etc. and the ecosystem of pluggable hats for just this purpose.
I honestly think that's where most of the demand is. It's an aspirational product, like a jacket you could theoretically go up a mountain in or a watch that works underwater or whatever.