I mean if you checked/changed the air filters and it/they were built up solid with dust and debris that could definitely aid in burning out a capacitor, but they do take time to burn out.

As the ad pointed out that even included AIR CONDITIONING!

So 10 years in original oven, orig furnace (2000), orig air conditioner (2006), orig hot water heater (??)

Yes by establishing a "co host" in your property listing on air bnb

Even a good over the air antenna would be nice to be able to catch local news during our stay. 

Giving 80% of work and turnover to repair companies and handymen I trust, with the other minor maintenance ( sprinkle system condition, air filter checks, exterior inspection for wear ) done my self.   

From the living room, step out onto the large deck and soak in the beautiful mountain views and fresh air; a great way to unwind at the end of the day!

As an owner is it better to a) install mini splits or  b) make renter supply their own air conditioner.

Have both an air conditioner and a dehumidifier system. 

We've upgraded many places especially when electric heat, heat pumps, central air conditioning is added into the equation.