The Reagan White House moved to lower tax rates for developers in the 1980s and then years of low interest rates glutted downtowns with office buildings. Time's up.
After moving from the US to Europe there is something magical about walking around the city and town centers here. Not just the tourist traps like Rome and Paris but smaller towns and villages with tiny narrow streets lined with shops and restaurants and people walking around. So much better than the souless shells our downtowns have become in the US.