Good point - Obsolescence was the most relevant factor i considered before going for an android based device and i basically made peace with the inevitable consequences. i went through with the decision notwithstanding as the A8 made enough sense to me as a hardware only device even if support for all streaming protocols stops tomorrow - its very difficult to match the same plenitude of functionality, connectivity and SQ with separates at the same price.
A better alternative for pure streamers from a support longevity standpoint are rasberry pi based devices like the Ifi Zen Stream and Allo Digione which I also use but they don't support Apple Music natively so no hi res, at the moment at least.
I grappled with the said issue also before i went for the A8. I do have an Ipad but controlling the music remotely was the issue i faced since i don't use an iphone or any other apple device except the Apple Tv 4k (2023) - and i couldn't figure how to control the iPad remotely with it.
Secondly, i use my ipad for work also and connecting/disconnecting it every single time to/from the rig to play music was a bridge too far, both figuratively and literally
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