it's tough because people are always telling you (i assume), "hey, your beer is awesome, why don't you open a brewery?" which is legit in my case because our local brewery is not good. i spent the better part of last summer trying to get my ducks in a row and seeing how plausible the whole concept was. i/SWMBO finally decided it was too much work and too much of a lifetime commitment. i've worked too hard at my career to drop it all and wager the future of my family on opening a brewery/restaurant (which our town SORELY needs more of). the visions in your head are always grandeur, but the reality of it is much different. the amount of **** that can go wrong with a brew system and owning your own business in general would be extremely stressful and knowing my personality, i would just drink more to cope with it... that wouldn't be a good recipe for a lengthy life like i hope to live.
i have no doubts that I could do it and run a successful business, but you're there 24/7. no family time, no free time, no hobbies to satiate your jones. even if you got it up and running smoothly, making money, etc. after 5 years, you're still a slave to the business and always will be. there's no kicking back with your feet on the desk playing around with different recipe ideas all day when you own a business. of course you can say you will hire people to take care of that stuff for you, but in the early years, you do EVERYTHING. distribute, brew, market, manage, inventory/stocking, everything.
i also think it's something that most new homebrewers get in their heads right off the bat. after brewing for a few years, i think the thought fades. so, no, i don't wish to go pro.