There is no shortage of custom shopping cart vendors that specialize in "good" shopping cart designs for ecommerce.  But what are their shipping integrations?  Do they provide inventory management or custom business rules for taxation, duties or fees?  
These solutions are great for just starting out but then you are faced with starting all over when you grow or want to adapt to a new direction.   

Some vendors require plugins that combine with other enterprise level software, but plugins are known to break or malfunction when the different vendors offer software updates through time.  We have rescued clients from this inevitable mess in our past and would hate to see you fall prey to it.

Core's high level shopping Cart experience not only is comparable in performance to all of the other high level shopping carts on the market but we simply don't paint you into a corner while providing your needed shopping experience for your clients.