Focusing on the one thing that brings income to your business and outsourcing the rest so you can do more of the income producing task and let others handle the non-income producing or MWA - minimum wage activities may be what you need to read about.Some people say you can make millions in real estate.

Railroad, trucking and the FedEx hub means there are plenty of blue collar jobs that can't be outsourced to China...  

The owner of the rental can be the host or they can outsource someone else to host for a fee or percentage of the income. 

Also I'm sure its more time consuming to hire your own plumbers/ electricians etc, but would it be more cost effective than having a contractor outsource certain jobs and mark it up?

You can usually outsource to some of the companies you see on BP for <$0.4 for a PC and around a buck for a yellow letter (Little less for standard postage a little more for a 1st class stamp).

This equals about $143,000 payroll expense per year.If I just outsource a property management company that charges 10% of the rent, I could theoretically decrease expenses by 43%. 

You gave an excellent anecdote why leased machines with maintenance/ coin collection outsourced to provider leasing you the machines is the best route to go.

I outsource it through yellowletters.com

I think there's definitely a market for Airbnb and if the numbers make sense, you can outsource the management.

But just know that it’s a slippery slope when you start letting tenants outsource their personal problems with their neighbors to you.