Baseball paradise awaits fans streaming into Coors Field on Friday afternoon for the Rockies' 2013 home opener. They'll be greeted by spring temperatures in the 70s, purple balloons and red-white-and-blue bunting. As a bonus, the Rockies are on a two-game winning streak and above .500 for the first time since last April. But beneath the optimism of spring, sunshine and baseball, discontent percolates in Rockies Nation. An online Denver Post poll this week asked fans where they thought the Rockies would finish in the National League West standings. Nearly 64 percent predicted the team would finish last, as they did a year ago. "It's sort of a mixed bag," owner Dick Monfort said Thursday afternoon while conducting a media tour touting $6 million in upgrades at the ballpark. "We have our avid fans. But then I just got an envelope when I was back in my office, and it was from a guy who sent me a purple shirt. He wrote that he used to be a fan but is no longer. "So, that's one extreme end. Then you have those who love the park and love the team. I think most people hope for us to do better. They don't think we're going to be a World Series winner this year, but they think we can win 80 or so games."