Risk and loyalty

One of the basic principles for managing risk for  any business or commercial undertaking is to diversify , have multiple vendors and customers , so that  you are not adversely affected in case any one  business shuts shop.

But some times , some people prefer to be loyal to a single company for personal reasons. In case there is a change in the management,  you have to start afresh with another company with whom you have no track record.  Most companies give their older customers a better deal.