You obviously do not know what you are talking about. I even doubt that you are a designer.
1. Ask every designer who succeeds to make a great magento theme and let me know if they can do it in a couple hours of work. You are looking at days of work per theme, especially when we deliver a fully functional theme with all the pages (checkout, catalog, cms etc). We may introduce front page only designs in the future at a lower price point for those who are developers and can spread the design through all the magento pages and pieces themselves.
2. Go anywhere and ask for a theme to be made for magento and let me know if it will cost you less than $300. Just for a photoshop design of a store you would pay at least $300. And we are not even talking about the work that it takes to customize all the little pieces for magento.
3. Our themes are a way to give something affordable to the community. Otherwise no one will have a way to get a fully customized theme for less than a few thousand dollars.
4. Why don’t you show us another website that sells ecommerce themes that are of greater quality than ours and at a lower price point. In many cases you would even buy ecommerce designs and have to hire a web developer to integrate it in your own platform.
5. This is just the beginning. We are going to release more themes every week.
PS: If you are looking for a custom and unique design for your store/business, that is why we offer Premium Custom Design as a service.