They're not. Many of them are either switching to a digital format or going under.
Allboy, Blueboy, Honcho...casualties of the internet. Men magazine has been thriving due to their internet counterpart menmachine.com. Playgirl is being driven by its internet site, and others are following suit. It's gonna take a little time, but you'll start to see more and more mags become present on the internet and less on the newsstands.