The ProThemes scenes/slides are exclusively available only to the the ProThemes subscribers.
Selling them off in one pack/theme per purchase would not be viable as it would be unfair as well and would render the monthly subscription unfair for those who subscribed.
I'd like to buy some extra themes, but I'm not a business and can't afford a monthly subscription.
Why not let us customers buy themes and/or slides in one-off packs?
Topic closed! End of discussion!
Shame that you have a business model that is so inflexible.