The original TechShop in Silicon Valley was kind of like that. People were making rocket components for the X-Prize. But over time, it turned into a factory for Etsy junk. The concept of "hand made" items made on a CNC laser cutter was a bit much, but it kept about eight laser cutters busy at the San Francisco TechShop. Then Etsy dropped the requirement that you had to make it yourself, and allowed outsourcing. The successor to the bankrupt TechShop has most of the same laser cutters, but they're mostly idle or broken.
People made Burning Man stuff, repaired bicycles, and made furniture. OK hobbies, but not going to change the world or even create a manufacturable product.
I don't know of a single maker space in Silicon Valley with decent electronics prototyping tools. Ardunio hacking, yes. Surface mount soldering and pick and place, no. The commercial maker space in San Jose and San Franciso has cast-off CRT oscilloscopes. About half the right stuff is there, half-broken and gathering dust. I'm waiting to see if the new nonprofits starting up can get their act together and actually open.
What's left of "maker spaces" has turned into "STEM" programs that parents push their kids through so they can improve their resume for college.