As long as the lounge has reliable internet, usable power and reasonable food, I don't care how long I'm there. Most airports don't have much else to do anyway.
When QF was flying to LHR via DXB, BA screwed me over and caused a misconnect to QF (they refused to check through to QF on the same ticket and the operating aircraft was late), leaving me in DXB for a day (QF wouldn't rebook me onto EK as it was a oneworld ticket).
I would have been quite happy to stay in the EK concourse A F lounge all day, but they insisted on getting me a hotel room.
