Am I missing something, or are Rainbow Cleats pretty meh?

Every now and then I see someone bring up cleating free SSR cards (Usually in the context of regretting having done so) presumably so they could buy something from that shop. But nothing seems particularly worth it to me. The single pull tickets make sense for Silver/Gold Cleats, and the SR+ tickets could turn into an SSR (Super Creek and Fine Motion being the jackpot ones for Make Debut).

But for Rainbow Cleats? It just doesn't seem worth it to me, at least not when it comes to rushing it. If you pull a 6th Kitasan or whatever then sure, but I never understood people using up an event card for what's currently in the shop.