Certainly residential towers are in much better shape than office towers right now and for the foreseeable future. Either way, they're still skyscrapers. In the case of hotels, maybe it's more cost-effective generally speaking to go wide than to go tall, but in many downtown cores, there's not enough space to go wide, so they basically have to go tall (not to mention any regulations that may be in place regarding how much of a block the building is allowed to take up, etc).
I don't think we'll be seeing cities breaking their previous height records left and right like what happened during the 70s and 80s, but I think we will see a lot of skyscraper infill in older cities, and still a few new height records being broken. Oklahoma City, Austin, Miami, hell even New York broke height records recently, Charlotte just got their 2nd and 3rd tallest, Salt Lake will probably (although not for sure) break it with their convention center hotel, Philadelphia, Los Angeles, and San Francisco are currently building their new tallest, there's probably other smaller cities that I'm unaware of as well. Hopefully sprawlitopia places like Phoenix will catch on, too (although I certainly wouldn't hedge any bets on it). So while the factors behind the new skyscraper boom are certainly different than what occurred in the 80s and early 90s, and perhaps even from the period just before the recession, the trend towards urban living and the re-focus on downtown areas, plus a general positive image of skyscrapers in general that seems to have gone truly global (even Europe is starting to shed their anti-skyscraper image), the United States is bound to see their own huge skyscraper boom as well. It's inevitable.
Sorry I don't mean to derail this thread. It is about Denver after all (I have been following this thread out of interest in our closest urban neighbor) but I don't have any comments to make because, well, I don't live there.