Old thread but:
A number of people, when they find out my passion for homebrewing and realise it involves more than opening a tin, ask me when I'm opening a microbrewery. All legalities aside there are a number of reasons why I wouldn't want to sell my beer. Worthy of consideration, at least some of them:
1. I can brew whatever I want, whenever I want - ESB, porter, tripel, APA, sour beer cider, non style specific experiement etc.
2. Not every brew I make is even worth being given away let alone sold. That's a luxury I can afford. As a business maybe not so. Even if I brew the same beer again, consistency is not something I have yet nailed down everytime without fail.
3. As passionate about brewing as I am, there are times when I can't. As a business I wuld have to.
4. I like giving things away that I'm proud of. I used to work as a chef and I'm fairly proud of many of the different dishes that I've cooked. I don't see them as a financial avenue. When I invite friends around for dinner, I get pleasure from their reaction to the food, not financial gain or motive
None of this is intended to take away from the homebrewers who have taken that step (eg kooinda). Those guys have made a great step and make great beer. Just my thoughts pertaining to my brewing.