This + many!
I had an enquiry before Christmas of buying a proper old school village garage with 2-3 mechanics. It's constantly full, produces good revenue and people come from miles around to have their vehicles serviced, MOT'd, repaired...and it maintains a lot of classic cars.
I did think about this for...all of a few seconds. It came with no residential property attached [the existing owner will remain there] and thankfully common sense got the better of me. I remembered that "one should never marry one's mistress..." Far better to keep a mistress at arms length for pleasure only. If not, they become hard work.