Ultra Sale's Oracle & Taboo Set Packs

I think it's a pretty good deal, but when it comes to pulling Oracle, Taboo... if I had to pick what I want most, it'd be Oracle, so maybe just the packs with Oracle tickets are enough. Meaning, instead of buying packs for Oracle 60 & Taboo 60, I'll buy packs for Oracle 40 & Taboo 40, or Oracle 40 & Taboo 40. I'm starting to feel like I won't be pulling much from Taboo or Oracle anyway. For Oracle, the upgrade cost is too high, so I might stop around 330, or just focus on upgrading arms and legs. Same for Taboo. If it's just for the main 5 characters, I feel like the tickets alone will be enough, so wouldn't it be more cost-effective to prioritize packs with Oracle?