I think it depends on the subject matter.
Good 'evergreen' content can attain powerful deep links naturally. We have sections (as opposed to 'pages') on a site that have deep links from .gov, .edu and mainstream media sites (e.g. a radio station that I was interviewed by), as well as links from multiple NPO's.
Think about it. If you put up a link to download Acrobat Reader, do you link to Adobe's home page?
We have a site in which roughly 10% of the inner pages are linked to from non-affiliated sites. Even a "weak" link such as a personal blog coming into one of these pages can lead to a dramatic boost in the SERPs - and it helps the site overall to boot.
I think Martinibuster is right on the money with his post. I suspect any site would benefit from this strategy. I was recently looking at a mainstream ecommerce site dealing with espresso machines (which I am in the market for, but that is a post for Foo), and they had this down to a 'T'.