I saved up my allowance for two months simply to buy sufficient UC to get the Lucky Spin Royale circulate
https://www.livebinders.com/b/3720990?tabid=8a1aaab6-1ba3-d04e-75e9-0fe0ec8cf9bb
I stored up my allowance for 2 months simply to acquire ample UC to get the Lucky Spin Royale cross, making the grind definitely worth it.