I wouldn't say there is particular collector value to any of those rounds. I suspect they shall all shoot the same, as it is Swissicon made and they spent a lot of time making basically the finest quality service ammo to ever be issued. I have shot 70s and 80s dated rounds and never noticed any difference in the ammo, it all goes bang and all shoots where its aimed as long as I do my part.

From a personal standpoint I usually keep a couple different variations of those rounds around (wax ring, no wax ring), just for my own curiosity not because of any value attached to either.