Is there a term of art of this business practice (leaving old, uncompetitive pricing plans alive while selling competitive plans to new customers?)

[Saint_Cad]

This reminds me of the scene in Boiler Room where Giovanni Ribisi is offered a newspaper subscription. He ask the salesman if that doesn’t screw over the old subscribers in favor of the new ones and the salesman says Sure, I guess. Ribisi replies that he can live with that.