My business has no retail presence so a printed catalog is unnecessary. At this point it doesn't make sense for me to switch to another shopping cart, but I think you're going after a perfectly fine market. The market for online store builders is really quite large; it's mostly a marketing challenge. If you have a strategy for reaching out to businesses in your region I think you're going to do fine.
Thanks rms I appreciate the feedback. I think you're right that the success of this product really boils down to a marketing challenge. I guess that applies to all products, but maybe more so when dealing with so much competition.