Originally Posted by
Often1
It seems clear from discussion of this ad infinitum that a "convention hotel" is one booked by a convention organizer or event planner in connection with a convention, not simply a hotel which happens to have a location with the name "convention center' included.
That also makes sense. At a massive event, the organizers may well book out 8-10 or more properties, not all Marriotts and then bus attendees to the "convention center".
As others note, rather than trying to find a broad principle, what is your exact concern?
So a place becomes a convention hotel if it's ever in its history been booked by an event planner or it becomes a convention hotel during the period that it's booked by some organizer/planner in connection with a convention? If one uses the second definition, does this affect the individual traveler who might have the misfortune to stay at one of these places during an event in which the person is not participating? In other words, one would need to contact every hotel to ask them about their event schedule in order to verify that the late checkout "guarantee" applies?