My typical pale ale runs around 35 or 45 bucks (all grain) for 5 gal, but i just make a maple DIPA that weighed in at $125/9gal (at 9.5%ABV) so it really depends. My next batch is a belgian gruit / robust porter blend, and I don't skimp on the herbs, so it'll probably wind up at around $200/ 17.5 gal. ($57/5 gal).
For me, the idea is not "how do I make a clone, but cheap?", I'm more of a "nobody but me makes this" kinda guy. that's not to say you are shooting for what I'm doing, or vice-versa.