Make sure you consider all the extra expenses that str properties have:third party software, supplies, county taxes and business licenses, utilities, internet, etc.and run the numbers to estimate what your cash flow will be in the high season and low season.  

Currently living on a tuna boat flying helicopters and won’t be back to Texas for another year and sporadically get internet.

Retail investor circles often suggest investing in ‘internet and Amazon-resistant uses,’ or operations that provide in-person experiences, such as restaurants and nail salons.

It plugs into a wall outlet and connects to the internet in the house. 

Anyone interested in marketing and sales should do a lot of internet research and you will find many successful businesses that use only door-to-door for their marketing and sales like a window company on the east coast that does $350 million per year in sales.Like every profession, door-to-door marketing and sales requires a lot of skills and anyone interested in it should seek as much training and mentoring as possible.

They use electric baseboard heat and I've never heard of a bill being higher than $200 a month, and that includes heat, lights, internet, TV, and all the appliances.

The idea that one can completely automate a short term rental with internet is a misnomer to begin with. 

For example, we are no longer charging tenants for the cable and internet at a property so we had to lower our rent by $30 to even it out.

They clearly want to grow into a higher-end accounting system so even their desktop version requires you connect to the internet. 

All you need is an internet connection and a good team