I don't want to play with other people all the time. Sometimes I want to play without anxiety about losing all my gear, but anytime I try to connect to a server with less than 3 people I get one of those messages. Eventually I'll get in but that takes anywhere between 5-20 minutes. The longest waiting period is the refreshing of the server list which is just awful.
The online factor isn't the funnest/best part of the game for me and a lot of people I'd imagine. Private/Local servers that I don't have to pay a third party to host would be great.