X-Cart is the number 1 choice of merchants looking for a good licensed ecommerce solution. Most merchants prefer X-Cart because of it has a lot of features like easy customization, PHP foundation, turnkey installation and search engine friendliness.
When it comes to a licensed shopping cart, X-Cart provides 2 cheap packages that are on par with many higher priced monthly and licensed carts. X-Cart also provide a monthly hosted solution, which you can choose to use instead of the hosted package.
The support of X-Cart is also awesome for a licensed solution, since they provide both an e-mail and phone support. Unfortunately, their support is limited to a number of technical support points, which are included with the initial purchase. To receive support afterwards, you will have to buy more points. This is why many merchants choose a monthly hosted shopping cart solution: the low monthly fee covers technical support as well.
Check out the website X-Cart to determine if this ecommerce solution is right for you!