I know many do, but it's been our experience that the money from laundry about pays for the service (machines, utilities).  

Carbon fiber body panels, superchargers, headers and exhaust components, aftermarket wheels, performance pistons and rods, machine work, etc – these parts are not cheap, and the extensive modifications left my car absolutely useless during installations for long periods of time.In total, after spending $17,000 to buy the car that I eventually owned free and clear (excluding interest) and spending an additional $20,000 in performance and other upgrades to end up with a reliable 600hp beast on the streets, I was essentially going to realize a loss of $22,000 if I was able to sell the car for $15,000 - the current blue book value the day I stood in the garage pondering if I was ready to take the leap and sign it over to a buyer.

Let me put it to you this way, in Las Vegas you can chose to gamble on many different slot machines, all of which the casino keeps a percentage of every dollar poured into the machine. 

A cash generating machine.  

There are 3 or 4 tractor trailer backends there, vehicles, an industrial ice cream machine, old snowmobiles, a couple boats.

We are a job creating machine.

and now it's a total hail of bullets, cops grab machine guns as leap from cars, EVERYONE is watching, landlords in-laws see it on tv, tag-line is "child-hating puppy-killer".   

It was surprisingly minimal & then with a regular machine & electric dryer it still only averaged $30/month with 6 units using it.

That means pricing should stabilize, as should inventory.The government has flooded various markets with props to help the machine moving.

Keurig coffee machine, gourmet teas, CableTV with lots of good channels, Roku with Netflix, welcome baskets with chocolates/peanuts/mints/etc.