I will add a bit more below;The casino project has portrayed a great deal of "hype" with many of Springfield's investors/residents/community.

At this moment, a two year treasury bill is yielding 4.524% while the 10 year treasury note is 4.113%.

Treasury bond money market funds pay over 5% now, tax-free from state taxes.

To your question in the post's title: It's got to beat low risk investing, such as treasury bills.

They are getting a leveraged cash on cash return of less than the 10 year treasury yield with the added risk of owning and managing real estate. 

Treasury bonds, which are issued by the United States federal government.

There are a lot of 30 year loans out there at 2-4% and banks would absolutely love to call those loans due and reissue at 7-8% (or simply own treasuries at 5%).  

Treasury bills are paying 5% and if you stagger their maturity you could have the money ready to go if you find a better opportunity.

Beautiful views, casino, and you're never bored.

Your main property is also less leveraged so you IRR or return on equity will take a hiti agree with others, you are better off staying liquid especially with treasuries paying 5.3%ulitimately it comes down to the rate of return you need for your financial goals.