I saved up my allowance for 2 months just to acquire satisfactory UC to get the Lucky Spin Royale move
https://www.scribd.com/document/1073333256/Finding-My-PUBG-UID-Before-Top-Up-Tips-for-a-Smooth-Transaction-167467
I saved up my allowance for two months simply to buy enough UC to get the Lucky Spin Royale pass, making the grind extremely price it.