When I say easy to get, I don't necessarily mean "in stock" - and that is obviously a huge consideration. What I do mean that as far as I know the Pi foundation plans to keep manufacturing older boards for a long time since some customers can't just easily upgrade to the latest Pi, let alone move to a whole new platform. Is the Beelink x86 PC you got last week going to still be for sale without any significant revisions in 6 months?