Because first you need to import 2c-h, likely from China, and it is liquid chemical looking sketch that isn't fun to get past customs, and then you need to source Bromine, and it is a highly dangerous chemical that needs to be handled with extreme care, and it is really hard to get it without triggering all kinds of shit, and once you get 2c-h and even more difficult elemental bromine, you need some lab glass and probably a fume hood if you don't want to die from the bromine, and then after you mix it all together and clean it up you need to find a pill presser to press tabs for you and in USA they charge about $1 per tab and require about enough product for 10,000 tabs to even take on your offer, and after you ship them the raw materials and they press your tabs and hopefully don't scam you or bust you, you need to get 10,000 plus tabs of schedule one narcotics shipped back to you via the mail. The cost of doing all that means that you sell the 2c-b tab that cost you $1.10 to make for $10 or even $20.