I think you have to consider the checkout page. UMD remembers all sales and what scenes were purchased together. If a lot of people purchase a certain scene at the same time as another one, those two are remembered together in the database. UMD maintains a list of scenes that were most purchased with each scene.
It's like Amazon's "users who bought... also bought..." right on the checkout page, pushing to get more sales of your vids.
To test it, add a couple of mud vids to your shopping cart and go to checkout. You'll see a list of all the vids that were purchased the most frequently with those mud vids in your cart. Now take those vids out and add a pie bondage vid and go to checkout. You see what I mean. It doesn't use video metadata or descriptions or anything--this is pure data mining based on past purchase habits (not creepily linked to any specific user--just purchase numbers and data). As time goes on, the more accurate it gets, and it sometimes picks up on unforeseen linked items. For example, a pie bondage vid might show up when you have a quicksand vid in your cart because some people who like quicksand peril might also be into pie bondage... shit like that.
If your sales have dropped off, then maybe later someone else released a new video similar to yours, or had a sale on an old one. Suddenly, your old vid pops back up on the checkout "related vids" page and you make more cross sales! (I need to build into the stats to show which sales were referred from that thing.)
The whole point of the store being integrated like it is was for everybody's stuff to compliment each other's like this. I wanted to push further than just the initial hit on the What's New section and forum plugs, and keep your stuff rotating out there, well, forever.
MM
Stay messy, my friends.
