I thought about doing that, but after I calculated the cost of materials and hardware necessary the pricetag looked like it was going to run pretty close to what I would need to pay to just buy my first year's supply already made.
Combine that with the fact that I don't want to build a chem lab in my garage (where my young kids lift weights 5 days a week), or have to explain to my wife why I am cooking up home brewed injectable solutions.
Even if it isn't illegal, it'd sure look like it (or at least seem sketchy), and would require me to answer a bunch of questions that are easily avoided by just buying it premade.
Glad you're able to save some cash and get yourself as much as you want for cheap though!