And with bronze keys available ONCE from job change?.
Maybe should test the treasure caches and see roughly how many bronze keys it'd take for it to drop a coupon, and no, gold keys don't count because they're only available from purchase while mvps are limited.
I know you already referenced that MVP's are limited, but many of them do drop bronze keys now too so gold keys don't need to be used. Further, we added keys to a few quests as rewards too. Right now those quests are one time completion but there are some other alternatives.