Debbie,
Grafting serves only one purpose and that is insuring that you get the variety you want.
Some Ebay sellers are creating mass confusion by implying that dr's come true from seed.That is not so and even if the offspring happen to look similar,they are not the parent plant.Grafting gets the customer the plant they want but grafting has it's drawbacks.The resulting plants do not grow as well,or as fast,as seed grown plants and the base will continually try to put out branches below the graft.If left on these will qiuickly over grow the grafted part.
