Does this imply it would be better to pool extra resources for a super node versus those same people beefing up their individual nodes the same amount? At least to some level of dimmishing returns of course

Fat nodes on fast low-latency pipes ran on dual-stacked servers 24/7 reduce ephemeral node churn and aid in node and content discovery.
Mobile devices on P2P behind CGNAT and other brain damage are more a problem, than a solution.