Here's my history from new user to today:
Came here for the classifieds. Never went anywhere else on the forum.
Then I got a Platinum membership and noticed something funny in my browser - chat shit in the lower right corner.
Clicked on chat, joined the conversation, met some great people, and laughed my ass off daily - also got great links to deals on this site and other sites
Chat software broke frequently, then was replaced - not compatible with a lot of mobile devices
594 kicked in
Chat users fell down to nothing, I hung in for several months often being the only person in chat, then I stopped even checking chat
I still pay my Platinum membership fee to support the site, but I'm back to just checking classifieds that don't change much
For me the progression was: finding deals, making friends, admiration for the good people here, being entertained by this community, then deals became harder to find, and finally losing touch with the friends I made here...