I still play. My warrior and my monk are at about the same place in Act I, one on nightmare, one on normal.
These days I find the rares I pick up are a good ten to twelve levels below me. As long as I can upgrade cheaply with the gold I've got on my account, fine. The moment I have to spend money to keep moving forward? Nah. Thanks anyway.
It's a good stress reliever game for me after difficult days. Go bash some ugly critters' heads in. At the same time, I have no illusions that I'm going to kill Diablo on Inferno, really.