Dude, there are people to play with. Just not all the time.
I often have at least 1-3 ppl with me. And I play A LOT.
... At the same time I have lots of chars so basically I have something for every occasion (char in a1, a2, norm, nm, hell...).
If there's nobody to play with it sometimes pays off to ask ppl if they have chars a bit lower and help them finish quests or give them items, because they will catch up.
/e: Ofc there are times when nobody is logged on. Like right now.
