I was a very early user and the initial draw for me was gathering badges as quickly as I could. I gathered them all so badges stopped driving me toward checking

I was a very early user and the initial draw for me was gathering badges as quickly as I could. I gathered them all so badges stopped driving me toward checking in. Then there was mayorship. But, most importantly, it was seeing when/where my friends were checking in. And as long as my friends keep checking in and I keep checking in, why would I quit "playing" Foursquare? The playing bit, in my opinion, is simply the hook. And let's not forget tips.