You can say that about every thing you read...EVERY ONE HAS A BACK DOOR AGENDA. But i have been growing in hyrdo for over 30 years and ever one in Oregon is a dirt farmer..I dont under stand it..You may save a little to start out with but the work in dirt is twice that in hyrdo and my bud is better then any dirt farmers. Hyrdo is faster, cleaner and better. I do grow in dirt but only when i am growing 16' plants