I agre, to a point. Though genetics does play a huge roll in the quality of cannabis, so does the growing environment and the handleing/cureing aferwards. IMO, seeds are always a crapshoot to some degree. You never know when or where that "Special" plant will pop up.
**** no,you may get better than what you smoke but not good weed,but in a way your right because you dont know what people spray on it before it gets to you or how old it is and how long its been in open air,the best weed ,if left out for 2 years goes bad
If you grow your shit right, even the worst weed becomes good.