When people taste my beer and say you should open a brewery, I laugh. I know how to make beer. I do not know the first thing about running a brewery for profit.
So is that to say if you had an angel investor and all the startup capital you needed, you wouldn't love to brew for a living?
I wouldn't. In my head I would just walk around saying it's time to brew X beer, thinking up new recipes, brewing whatever I wanted and talking to people about how great the beer is. That's not anywhere near reality. It's a lot of cleaning, it's a lot of brewing the same thing over and over, it's people b****ing because you make too much "bland" beer in your normal line up and b****ing you don't make enough of the "good stuff" and fighting to get shelf space. The bigger you get the more you manage and the less you brew. It's manual labor work in an increasingly competitive market that generally is not that profitable. I've already investing a huge amount of time, work and capital into my current profession. No interest in moving into another field.
Everything I like about homebrewing is generally not present in commercial brewing. I like that I can brew when I want or not brew if I don't feel like it. I can brew whatever I want and I don't have to worry about whether I can sell it off. I don't have to appease other people. I can experiment as much as I like without restriction. Sure, it's getting easier to operate a profitable brewery on a small core line up and make everything else experimental beers because the demand is there but how many breweries like that come and go in a couple years? How many can scale that model up?
Sure it's a lot of cleaning and putting up with people's crap, but that's probably why a lot of people don't do it. If you don't think you'd enjoy cleaning, brewing the same beer repeatedly, and taking criticism, then stick with homebrewing. Also, IMO if you're getting complaints about the beer being bland, you may want to rethink brewing as a profession.
I enjoy brewing, and really don't care if I brew the same thing over and over again. I like what I brew and I'm not a huge experimenter, so there's no problems here drinking the same thing often. YMMV