We're thinking of switching shopping cart providers. We need a cart with the following:
1. Must be built to handle 500,000 products.
2. Must have robust import and export of categories and products
3. Must provide the source code
4. Make / Model / Year from the cart supplier or 3rd party is a must
A lot of musts I know. We've learned a lot with our current cart, and it's a fine cart for 5,000 products, but we are outgrowing it.