I see what your saying. The downside of giving one video at a time is if the surfer didn't like that one, he's lost and feels cheated. Giving him a better deal has a better chance of keeping him buying.
Could work for one video at a time or say a few videos at a time. Like network of small sites, say 100 sites like
www.5dollarsporn.com except with a more attractive name. Giving the surfer access to a handful of videos and the possibility of upselling to a large site.
The option would be there for the surfer to buy one site at a time or more at a discount.
Affiliates wound send traffic to one main site or the whole group. And get paid for a lifetime of the member re-buying in the network of sites.
Why didn't I think of that.
Haters please note the LOL LOL