Same for a simple, clean, modern light fixture above. 

He doesn't do technology (email or text) and doesn't really do phone calls.

If it's a modern house (e.g. 1940's or later), then it might be better to either refinish (if the floor is in good shape) or float another floor on top.  

I enjoy working with technology and don't foresee that ever stopping.

Using Google's "nearby" feature they have a notification appear on your phone when you are in range.That technology is now available on a very mobile platform.The Asirvia Go proximity beacon is about the size of a car key fob.

The cabins are between 600 and 700 sq. ft. with higher end "mountain modern" finishes and are selling in the lower $200's.

Sorry if I sound like a wiring idiot, but I haven't done this in the past and it seems like modern buyers would want it. 

American Modern does not have limits.Don't forget Flood insurance!

Those who are saying that technologies will never provide an absolutely correct rental prices definitely have a point.

I know there are landlords that protest that including these items will expose them to unmanageable maintenance costs but to be honest we rarely get calls (I use top load washers - more durable and simpler technology than front loaders).