I saw this, this morning. Subscription idea sounds great ... trying to make sure I'm prepub'd for the next group is tiring.
https://community.logos.com/forums/t/203874.aspx
And so I checked up on 6.4. There's a Master collection. I didn't see a Theology one. But there's an Academic ... it says it's in production, but I already own it.

I notice quite a few already-shipped (not this one), but still in-production. On my purchase history, they're in black as if no longer sold. But they are.