Meh, not really man. Porn is tired and obvious. The real killer app for VR is social interaction with other people. It’s quite an experience to see someone else in VR standing before you and interact with them naturally as you would in real life.
But, you do have a point. However, it's going to be a long time until the VR technology catches up, there's no great social experience (as far as I know) that isn't sitting at the bottom of the Uncanny Valley.