take the time to try AG and see for yourself. it will just cost more money and time.
Not to be a jerk about this, but I feel compelled to point out that the part about AG costing more is just not true. The upfront costs for a very basic AG setup (think BIAB) are only slightly higher than for an extract setup--basically the only extra things you need to buy are a hydrometer and a BIAB bag. And the marginal costs are so much lower than for extract. Put it this way: my LHBS sells plain DME for $15.50 for 3 lbs. for the cheapest kind of DME (what I use in my starters). The specialty stuff is more. The same store sells malt for between $1.80 to $2.30 per lb. for most types, with substantial discounts from that price if you buy full sacks.
Now, if you're making, say, a 1.054 OG stout (like this one
here), you would need to buy 7 lbs of DME plus 1 lb. of specialty grains to do it with extract--that would run you about $38 before tax ($2.30 for the specialty grains and about $35 for the extract). Of course that doesn't include the hops or yeast or anything else, meaning you're probably well over $50 for 5 gallons of beer by the time you get everything. But since all that will be the same whether you do AG or extract, we'll ignore those costs.
If, instead, you decide to make a similar AG recipe with the same OG (like this
one), you need 8 lbs. of grain, which works out to about $18.40.
So making basically the same beer,
AG will cut the cost of your grain bill by over half ($18 vs. $38). Even if you get crappy efficiency, you're still spending maybe a buck or two extra for some more grains.
Now, I know, many AG brewers buy thousands of dollars worth of equipment, which negates the savings associated with brewing AG. But that's a little beside the point, because you don't NEED that stuff, it's just extras. Even with a basic full AG setup (pot, cooler, spigot, braid) you can brew virtually anything that can be done with the more advanced systems, and you're spending maybe $150 more over an extract setup. How many batches before you recoup those additional costs when your marginal cost is $20 less per batch? Not very many.
I'm not arguing against extract brewing here--I did it for several years before I switched to AG, and loved the beers I made with it. And today, the variety argument for AG has gotten markedly less compelling IMO, since there's so much more variation in extract available than when I started brewing. But for cost, AG has extract beat hands-down. How much equipment you choose to brew with is more a philosophical choice than anything else, but AG doesn't have to be more expensive and can actually be MUCH cheaper than extract.
Cheers