But I think it is worth one hour per week if for nothing else, to improve the quality and performance of your elevator speech and value add.

Elevators generally kill expenses. 

This doesn't affect me directly, but is a news article I recently came across regarding an HOA that won't allow a home owner to install a radon mitigation system. http://www.thedenverchannel.com/news/local-news/st...The owner was apparently set to sell the home, but the buyer's inspection revealed elevated radon levels.

if its on the edge you may be able to get it pulled out, or if its in an unmapped area, they put it in as a precaution, you will need an appropriate surveyor to shoot elevations and submit a LOMA Letter. if you are in and its Non Owner Occupied,  dont Buy it,  or if you own it, Pay it off and Self insure, those rates are ridiculous.

I read a lot about cap rates but have to think that the value is also significantly impacted by the age of it's major systems/components (e.g. elevator, hvac, lighting, etc).

We elevate the value of the property preparing each home to raise its value, offering all the essential, complete concierge service, and from the result of that work we take our commission from the extra profit.Because of this unique commission system and the add up services, we knew that our cash-flow would be a “nightmare” and we had to develop as a modern automated company.

and an elevator.

Each and every home will be different based on it's particular elevation.

I did a three major additions (2 kitchens, apartment on accessory building, extra garage, elevator – all on my property.

He had an elevation survey done that I can buy for $250.