The best illustration of the distinction between no plans to exit and no exit occurring is 37signals. Jeff Bezos's investment in them is a sign that he believes there will eventually be an exit. As far as I know he didn't insist on them paying him dividends; that would have been very unusual; so without an exit there would be no way for him to get his capital back.
We too would have bet on 37signals, because it's hard for technology companies to stay medium-sized. They either peter out, in which case exits are a moot point, or they grow so large that they either go public or eventually receive an acquisition offer the founders are willing to take.