Some people consider SL sad, others enjoy it. Its surprising how many people will tell you to get a life then disappear in front of the telly to watch Richard and Judy or play their xbox.
SL is a game. One of the major things that attracts people is it gives the opportunity to be the master of the game and control every aspect of game play. No one is writing the scenario for you, its fully interactive and allows people to be creative. Better, anyday, than an hour of that Kyle bloke being rude to chavs.
People are of course entitled to their oppinion - but i would urge a doubter to have a go, take a tour around SL, before denouncing it as sad geekery. You might just enjoy the experience.