Minor point that made a couple speakers happy the first year - I had small break service (venue-speak for snacks/drinks/coffee) in each presentation room, vs out in a main lobby area. Apparently they like being able to get set up in a room then grabbing a quick cup of water before speaking without having to navigate back to a larger common area. Who knew? :)
People expect coffee or drinks during breaks and will complain loudly regardless of the registration fee. $7-10 per person for a coffee break is not uncommon.