hamiltonsfitness
It's their job to convince you that you need a whole shed load of stuff that you either don't really need or are already getting from your food.
Couldn't the same be said of gyms?
http://www.rosstraining.com/nevergymless.html I used the above program for a period of 3 months or so once, and it worked very well. I use weights and the gym because I prefer training in that way - but you don't need a gym to stay / become fit and althletic (or muscular).
People use supplements because they:
1) Give them a bit of a helping hand when working out - e.g. Gakic, creatine etc.
2) Make their life simpler and more convenient - e.g. MRP's, protein "flapjacks", protein shakes etc.
3) Enjoy using them! Hence....why any free sample offers ever publicised on MT get snapped up rapidly.
Tbh, the anti-supplement propaganda does get annoying - principally because this is a low-margin industry compared to many others than people do not have a problem with. The *net* margin on supplement sales is far lower than that in most other niche markets because it's extremely price competitive. It's extremely price competitive because most people purchasing supplements do so every month and compare prices.
The biggest irony of all is that far from "rubbing their hands", most supplement retailers and manufacturers are staffed and run by people who are EPIC supplement users. A picture of my kitchen would demonstrate that.