Logos users, these sets are a steal. Place your bids!
https://www.logos.com/product/28902/patrologiae-cursus-completus-series-latina
https://www.logos.com/product/28903/patrologiae-cursus-completus-series-graeca
https://www.logos.com/product/28982/patrologia-syriaca
Vincent, I consider myself a fairly optimistic person but there seems little hope that any of these will ever make it into production since there are been so few bids so far.
But, I agree that these are a steal, so your post has motivated me to raise my bids for each of them. Perhaps someday...
My guess is that these projects need a donor willing to substantially underwrite their cost of development.
I really, really want to bid on these, because it's clear that they represent a wealth of scholarship that needs to be made accessible to scholars electronically. But my position is one that I suspect many Logos users share - as much as I hate to admit it, my Greek skills simply aren't strong enough for me to realistically expect to get any meaningful personal benefit out of the texts. My Latin is even worse, and I've never studied Arabic, Ethiopic or Syriac.
For me, it would purely be a donation - and at $250 bucks a pop, a fairly sizable one.