I primarily do 30min visits because of my limited availability. I would never expect someone to go get a room for a 30min visit. Many that have their own place they work out of or who already are in a room visiting the area ect is the only way that makes sense.
For me it is when you are almost there and they ask you to go pick something up for them....fuck that.
The other is the time issue in general. I'd prefer a shot clock be added lol. That way everyone is on the same page about what is going on. Too many times I read post about people getting shorted or complaints of trying to go over. Im doing my best to try and make it 20 minutes. Usually little talking just getting down to fun which i prefer. Then its like Oh shit.....last longer then 5 minutes LOL.