Ways to "save money" by homebrewing:
1. lie to yourself and others about how much you spend on homebrewing
2. lie to yourself and others about how good your beer is compared to commercial beers
3. compare the cost of your bulk-purchased ingredients to the finished, packaged, highest priced commercial examples you can find
4. Assume that you would actually buy large quantities of those high priced commercial examples
5. Drink a LOT! The more you drink, the more you save!
6. Never consider that the endless hours you spend on HBT, brewing, cleaning, and shopping for homebrew deals could be spent in other, more productive ways.
1. Who does that? Most people here mention everything right down to the sponge they stole from the kitchen sink to clean their kettle.
2. Does it matter if others think my beer isn't as good as long as I think it's better? Right now, I'm drinking a lot of saison that was fermented with some Sacc Trois thrown in. My friend tells me that the pineapple isn't to style, but I like it better than any commercial example. Win for me.
3. Why wouldn't I compare the cost of my ingredients and amortized gear to what I pay for the commercial example of what I would otherwise buy? If I wasn't drinking this saison of mine, I'd be dropping $12 on 4 packs of Allagash, because that's what I like.
4. I used to buy really expensive beer, now I don't. I still buy lawnmower beer since I don't make beer cheaper than Pabst does. That, and I prefer my shower beer in a can, so homebrew is out.
5. I have a couple beers a night, that happened before I started brewing.
6. I call this "having fun." I value having fun more than I value being productive. Millions of people feel this way as well. If they didn't, there wouldn't be TV shows, movies, video games, sporting equipment shops, whatever.
Brewing saves money for some people, and is an expensive hobby that results in beer for some people. It depends on who you are and what you would be drinking otherwise. Or what you would be doing for fun otherwise. There are some damn expensive hobbies out there.
For me at least, I'm not going to replace having fun with working more, so this hobby actually works out well.