Brisket is the cut of beef i buy most often which is about once per quarter. Usually for pho (point)and as a pot roast(flat) it's the cheapest cut of beef/pound, you just have to buy a big chunk. So, yeah, you're into it for 50-60 bucks. And I trim out pounds of fat separating the two, but still cheaper than buying pretrimmed.
As to barbecue brisket, it's good, but i like just about everything else better. So thus my not seeing the point of your endeavor.