GanjaRob...
When you go to the doctor,because your sick... Your body is stressed! He perscribes you medication,for your ailment..Then the next thing ya know.. Your feelin' better! You've been revegged!

Same thing with a plant.. A clone from a clone from a clone,and so on... That is way more stressful for the strain. What I mean by that is.. You are slowly degrading the potency of that strain. Thats why we keep Mama's.. Revegging keeps them close to the original donor Stress can be dealt with! Destruction has'nt a chance. Don't knock it till ya try it! It's a GOOD THANG!