60mg vs 100mg Reta vial ….Which would you buy?

I’m deciding between a 60mg and 100mg Reta vial. The 100mg is only about $40 more.

I’m not a hyper-responder, lower doses have been pretty ineffective for me, and I’ll likely end up going above 10–12mg every 5 days.

My only concern is whether a 100mg vial stays potent long enough after reconstitution.

Which would you buy, and why?