pruned nodes sucks, you should buy a bananapi with sata port.
I don't understand your point. The performance of the raspberry and banana are similar and I don't think the disk speed will make much difference (except for the initial sync).
It was not about performances, I don't like pruned nodes, it is only a personal opinion.
better pruned nodes than no nodes at all.
I still don't know what you mean. Why would it be a pruned node? Who would notice a difference?