Simply making NOs harder to attain, through either adding units to a new setup or how it’s worked now (via bid) is enough for me.
Their relative ease to acquire is irrelevant. It WOULD be nice to have every (or almost every) NO come into play. I’ve yet to see the Russian 10 IPC one matter, nor the Japanese controlling Solomon/Wake/Midway/Gilbert. So the question would wind up: should they be in the game at all?
The more pressing issue is the France conundrum. How should they be handled? Something SHOULD change there. I feel like the first time France is liberated NO should read: the first time France is liberated, France collects IPCs from all controlled territories during the liberator’s “collect income” phase and may immediately spend it. France does not collect IPCs during their “collect income” phase this turn.