Jfizzle is wrong about the amount of 'research' done on cannabis, not sure what argument he was using there. But cannabis is worth WAAYYYY more then tulips by weight, so IMO using a more expensive product for a small indoor cultivator that has everything needed in a couple bottles, really isn't a huge rip-off. Not everyone feels like mixing big bags of soil with amendments.
Salts are not some 'evil' additive that destroys your environment on a small scale when used correctly. Organics also have salts in them too, you can look up the salt index for organic amendments, some are low, some are relatively high.
Example about price of synthetic nutes, GH is only $30 for 2 32 oz. bottles and they will supply enough nutrients for somewhere around 5000-$10,000 worth of dried buds, if used correctly.
Don't get me wrong, there are alot more nutrient companies out there and some are unethical, but its the free market we live in. I believe if you don't like a product or the companies ethics, then don't buy/support that company.
Bashing synthetic salts for destroying our environment is like blaming a murder on a gun, the person/people are responsible, not the inaudible object. Someone who drives there car to buy organic nutrients probably does more harm to the environment with exhaust fumes then the 1 qt. bottle of synthetic salts would of hurt.