I HAVE received, now and again, at least as much pleasure in SL as I have in "real" life. NOW AND AGAIN. And if there are people out there who have not, then the problem, IMHO, is more to do with their ability to let go of their beliefs in what constitutes a true feeling experience, as opposed to worrying that this "letting go" and experiencing of the unfamiliar, might constitute a betrayal of their real life.
What SL and VR has offered me is an opportunity to mentally/ emotionally explore subjects and situations that in real life would be far too life changing, and possibly dangerous, to be explored in reality. Far to many people are stuck to their RL personas and when they enter a virtual world, they take these personae with them, so they experience nothing of note and leave. In virtual reality, you reap what you sow. Take for instance one of SL's biggest and longest running communities and money spinners, The Gorean. (Although LL have always been in a kind of silent denial of its existence).