I kept up my allowance for two months simply to buy adequate UC to get the Lucky Spin Royale go
https://www.scribd.com/document/1003034715/Last-Minute-PUBG-UC-Purchase-Before-the-Season-Ends-Was-It-Stressful-142594
I kept up my allowance for two months just to buy sufficient UC to get the Lucky Spin Royale skip, making the grind totally worth it.