If you figure out how to make an effective home recipe, they're headed for the dust bin.
The challenge has been made and I accept!
Seriously, I've been around long enough to understand how marketing works. The reality is that often times, the difference between a marketed product and what I can make at home is that the vendor took the time to develop and market the product. I hold two copyrights to data analysis tools. My customers tell me that they could have done the same thing. It's true.. if they set aside two years and $250k. But I did and they didn't and that's how I make my living.
I have no desire to compete with Kanberra or West Marine, it's just a drag to have to order that stuff all the time. And if I fail, then that's ok. At least I tried.