Yeah, the R tickets just become fodder since there is nothing special in the R gacha at all that makes you want to roll for it. While it will take a fair amount of time, even for me still, eventually you'll have all N and R cards on lvl 100 and then it's just the EX levels left. Not that i have unlocked those.

Thinking i might go ahead and go further in the story once the event is over. I have the N card on my current area at max and the daily missions in all honesty seem more lucrative than the explore when it costs 7 stamina per push. I mean, the daily missions guarantee that you get SOMETHING for it, so they seem pretty damn nice compared to later missions. Of course it still seems like a better idea to wait in each area until the N card is maxed out, though.