I see you sell building construction equipment that would let me build any building I could imagine, but I also see you sell prefabricated storefronts that you built with your building equipment.
Does that scenario make any more or less sense to you?
If you own the tools you can spend a lot of time adding features to the powerstore that could easily justify the cost you charge.
You can charge for design work, setup, database population, and ongoing support. I think it would be relatively easy to justify a $2000 charge for putting up an ecommerce site even using powerstore out of the box and only reskinning.
There is also a lot of other applications out there you could build with our tools besides a store.