A couple of reasons like inadvertent patent violation, to prevent clones, more closer to customer. The problem with this method is it requires lots of sales and

A couple of reasons like inadvertent patent violation, to prevent clones, more closer to customer. The problem with this method is it requires lots of sales and support staff and they all want to focus on the big customers with huge run rates. So if you are a someone with a big pocketbook they will wait on you hand and foot. Anyone else is just not worth the time.