IMO, their only reasonable use is to bring the CC to the size that we want and to release the basic benefits, putter & shot pals & tournaments. At level 6, it should be done for most.
Level 7 to 9, Superpasses, "officers", XP bonus - what for?
And who needs those winnings offered in the Clashes? What "help" do you find there by buying passes? It appears to be a gigantic auction for the golden calf, promoted with plenty of hype, and the highest investment of time and credits makes the winner. I don't need to be there, given that the golden calf has only an artificially high pricetag but no real value - you can't even sell it back!
OTOH, you and your mates should get free passes - once you keep your hands from the "buy" button for 12 hours. If not, each player should apply to CS - they can help.