I guess it's one of the problems that people have when judging old buildings - they compare them to modern structures. Everything that is 50 years old or more will be outdated by today standards. If someone built Chrysler or ESB now, it wouldn't be anything special, escept for the height in many cities. These structures are impressive, because they were groundbreaking for their times and paved a road for architecture to follow. It's hard to say if relatively new stuff is overrated, because only time (at least 50 years for me) will tell if something is a timeless design.
People argue that cladding on new buildings is nicer, that windows are bigger, lifts are faster and floors are more open. The problem is, it's the natural flow of things that people get better at technical stuff. Back in the day almost everything was man-made - bricks were put in place by hand, rivets were heated up and flew around the floor so that they could be punched into place.
When you look at all the new stuff, you will see buildings that are made to get their owners rich. It's not about being unique anymore, because when you look at Burj Khalifa, it's the same repeating glass pattern all the way to the top. These buildings could be just bricks from bottom all the way to the top, tapering to cut some costs on the materials, but they're not. After the market crash nothing is the same. Capitalism inflated everything so hard that millionaire investors need millions from their investments to keep the flow of money stead - after all, how would they buy their expensive houses, exotic cars, yachts and jets ?
Take a look at Park 432 Avenue - it's a perfect example of "we have a small parcel, how much cash can we squeeze out of it?". Minimalism is good, being a penny pincher is not.