Some people are willing to pay still.
Me and a buddy just did a wall mural that was hand painted.... Was like 20 ft x 20 ft, took us a weekend only.. but since it was hand painted, we got 75k to do it.
Expenses were maybe 7-8k...paint, genie, road closure, permits, etc. Few hours for custom artwork, 2 really long days of painting.
Any idiot can print a
sign out of his garage, or wrap vehicles.... They don't always do it right, but there's so many options which is why the cost is low. Have a niche like hand painting a
sign and you'll easily find people willing to pay for all 400 hours of your time.
You may not have 20 jobs lined up, but it's not too hard to get a small queue going and do a job a month and make more off of it than a full blown
sign company pumping out hundreds of parking
signs at a 20% Proffitt.