If the show keeps getting good ratings, then I'd say we'd be in for an even longer wait than that, as the studio will want to make some money stripping it for syndication first. That's part of what has taken shows like "Everybody Loves Raymond" so long to come out and is apparently, part of the stated reason why we won't be seeing "Scrubs" as soon as was once thought.
If they intend to syndicate "Men", releasing DVDs now would likely be seen as cannibalising what they hope to make in selling the show to local TV stations. If the reruns are exclusively in syndication for a few years, it would be a more attractive sale to the TV stations.