And there's a difference between making $17k/month and clearing $17k/month. mathofma (who makes a lot of cinderblocks) notes elsewhere in the discussion that th

And there's a difference between making $17k/month and clearing $17k/month. mathofma (who makes a lot of cinderblocks) notes elsewhere in the discussion that there's not really that much margin to make it an attractive target. It's a good small business that covers its manufacturing, labor, etc. costs with likely a bit of profit beyond that, and it could grow a bit (as it has with bricks and other materials), but it's still the kind of thing with a relatively small total world market. There may be additional markets he could spread into particularly by going international, but that's still a limited set of potential customers.