Yeah, if markets work efficiently and there's sufficient demand then none of us should be able to save money by doing something ourselves that can be done more efficiently on a larger scale.
None of my hobbies - hunting, fishing, photography, homebrewing, etc. - save me any money, but they do bring me a lot of pleasure.
In my mind, the "maker culture" is fueled by the feeling that we can make things that have a higher value to us than similar products that we could purchase. Some of that value may be created by freshness, uniqueness or even just the intrinsic value of the work and care that we put into crafting the product.
That said, I grew up raising cattle and farming. While I love brewing my own beer, I'm perfectly content to drive to the supermarket for my beef and bread ;-)
Me too! I'm a DIYer - do my own house repair/maintenance, veg garden, cut my own firewood, do basic maintenance on my motorized stuff, etc. - but zero interest in raising my own meat!