Copper/pex and pvc plus modern wiring plus good condition, then age in theory should not be a big concern.

If you're flipping the property I'd demo and rebuild the floor to modern standards with new materials. 

The technology and styles have just changed.

They sometimes use technology to make it look good on the pictures and you can't check a lot of stuff just looking at the pictures.

Pretty much all modern thermostats have a cool setting, no AC and it does nothing.

That's the modern version of apprenticing. 

Many of the home owners in the areas that are showing crazy appreciation and growth are old, old fashioned and not technologically "in the now".

After a thorough cleaning, I replaced all carpets; painted several rooms with modern colors & touched up the others; upgraded a few fixtures; and, made several small but impactful cosmetic improvements.What was the outcome?

If you want to be as close as possible to a big modern city, then Medford/ Everett/ Malden (I think Lynn is way undervalued too in parts) is your route. 

We only address termite or vermin issues that may occur in our single family properties.Repairs can eat into an owners profit and older buildings not retrofitted with modern systems can be a drain.