^I don't think this is a national problem. You've named three cities (and I'd disagree about Downtown Miami - there are plenty of folks down there, and I can't speak for Phoenix, sa I've never been there). However, take a look through the site, as we've compared literally over 100 cities and their urban cores. Personally, I'd highly recommend San Diego, Portland, Greenville, Charlotte, and Nashville to name a few.
I'd also say that in those cities, if they saw an opportunity to invest 3.5 million, solve a 23 year obligation, and make money on it in three years, they'd be all over that