Steve Nash not an all star starter

How can Steve Nash not be a starter in the all star game? He won the MVP award the past two years and his team is one of the top two this year. No starters from Dallas or Phoenix. I think the fan voting is a little off this year. Tracy McGrady is a great player, but I don't think he deserves to start this year. And Shaq? Not even close. Injured most of the season, with lower productivity anyway.