Dalton:

It would be my guess that Uber users are looking for is an easy way to create an Etsy type of store. Each seller would have total control over their products, images, prices and descriptions. Each would have a separate shipping account with PayPal or another payment host.

And the host would charge a percent of sales, maybe a monthly fee or a per product fee to use the system. There would be an overall index listing product groups and some form of overall catalog. One issue would be to design a system in which the non technical person could easy manage their account without the need for hand holding. Or enough safeguards so that the site could not be damaged by one users inattention to detail.

Thought that this would be a nice addition to my own site for the expansion idea of sub leasing your server space to others and yet keep a master shopping cart site as the umbrella.

Maybe at some point this will be possible.

Jim