What he says is true! Even though my current home was built during the middle 70's, it has all of the features everyone wants, except a current 'open' floor plan. My home is a custom home, built by a builder who built several homes in the sub I live in. The difference is that he built it for himself to live in, so he went above and beyond for the times. All of the homes in my sub are actually custom homes...
I do have 2x6 construction with insulation thru out the house, including the interior walls. Who knew putting insulation within the interior walls makes so much of a difference? I have a 10' tall basement which will spoil you even with a drop ceiling, because you still have the regular 8' ceiling. I have (2) furnaces - One is a boiler and the other is the conventional gas fired. The 2nd furnace is really just for the Air Conditioning and all of the ductwork is in my attic. I just use the boiler for heat and this is the best heat ever - 5 zones and every room stays exactly how you want it without any problems. There is copper plumbing thruout the house, including for the hot water baseboard heat. I also have Andersen wood windows thru out the house and even though they are from the 70's, not one has ever broken a seal and none of them ever leak.
About 7 or 8 years ago I had spray-in foam insulation added to the walls and about 3 feet of additional blown in insulation added to the existing 12" of insulation to the ceiling. Funny thing is I didn't notice much change in warmth during the winter, but I did notice that the additional ceiling insulation helped a lot for the A/C. That is because all of the A/C duct work is in the attic and the additional insulation completely covered the ductwork wp there...
So, pay a little extra up front for some features and you'll be rewarded in the long run....Just my .02....grr