The Raspberry PI also has an intangible value from years of community goodwill. And people trust that the kernel OS support will be around in 10 years.

The NVIDIA solution is impressive... but self-immolated with the consumer price point (markets for government equipment may work.) People usually either have money or time... asking for both in a product is foolish.

The other SoM also have a long-tail market attention problem, as one could spend 2 weeks tracking unstable kernel driver problems. Or just drop in a $35 pi, and solve the task at hand. =3