Although I have done work for others and had a part time business post-retirement, it's pretty much all hobby/avocation here other than one guy that I help with some CNC cutting...he does resin inlay work and doesn't have the time or space for a shop of his own. But I actually enjoy the CNC work...particularly the virtual design which is an art-form for my head.
On the laser, small, inexpensive units, including those that can be added to a CNC are ok for engraving work, but they are not suitable for cutting. Folks who want to cut out parts, regardless of the material, need to get a much more powerful and dedicated laser unit and those are not inexpensive.
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The most expensive tool is the one you buy "cheaply" and often...