I'm with you on Bloom and on building winning teams, and I hate those foolish, gigantic contracts.
That said, there have definitely been players with immense fan appeal--like the Babe, like the Splendid Splinter, like Sandy Koufax--and a slew of others. Trout has pretty much delivered every year and appears to be a shoo-in for the HOF. But I'm pretty sure he hasn't affected the Angels attendance all that much. In fact, I just checked: attendance was higher in 2009, 2010, and 2011, before his rookie year of 2012. And since then attendance has not returned to pre-2012 levels.