I've been observing the concept of PMAs and similar things for the last 3-4 years now and I never jumped the gun because I feel like having one puts me from this little unknown entity (where I am now, quietly selling things to people who want them) right smack into the radar of govt purview, and while I still might *get* that they're private and supposed to shelter all that I do, business-wise, the fact that I would have one freaks me out for that reason. But I'm attracted to the idea and would like nothing more than to tell people I make and sell XYZ, but you have to know the password lol. 

(I've been making & selling jerky and other prepared foods to people online & IRL, and yes, I *could* get a cottage license, but I'd prefer none of that).