All 61 units have my personal cell phone number. 

Many have you cell number public.I see you interested in multifamily.

We are approaching the capital to buy a cheap cabin in cash if we wanted to, but feel like that isn't the best use of our nest egg. 

They expect personal cell phone numbers and their calls/texts to be answered no matter the time of day and on weekends - even holidays.

@Alex Breshears what about for direct mail can I use my home address and my regular cell phone number or should I get a Google number?

Everyone is accessible through email and cell phone.  

Management can literally be done remotely with access to a computer and a cell phone......We have 49 large units being built and they have 12 month leases and we anticipate them to be fully occupied quickly.

With that said- if there are no scores reporting, you can still qualify with showing a few alternative trade-lines; such as cell phone bill, utility bill, car insurance bill, etc. 

Even if nightly rates didn't continue to rise over time, breaking even now would still be a free house in 30 years that I could sell and use for a retirement nest egg along with my 401k.

But I agree with you, if you can diversify and do both, then do both, but I'd put more eggs in the stock market basket if I had to do it over again.