I know tastes change as you age. I accept this - in many ways I look forward to it. I have always enjoyed new things - okay new to me might be a little more accurate, this can involve discovering musical artists I'd previously overlooked, old films, re-runs, classic novels and the like.
But one thing I have noticed recently is that my tastes have edged darker and heavier. In many ways they've gone back to the type of things I used to watch and listen to when I was a kid. Musically my favourite bands at the moment are Metallica, Rush, Iron Maiden and Dream Theater. I still like The Who, Yes, Pink Floyd, Suzanne Vega and the like. It's just I prefer something a little heavier these days. When I feel like some music I'm more likely to put on Nick Cave, Disturbed or Stonesour than REM or U2.
My reading tastes have darkened too - I'm reading horror as the norm, rather than sf. I'm watching horror films and crime and horror TV shows like Dexter and Bones and my old faves Stargate, Star Trek and others are notably absent from my viewing.
Life's odd. It throws curveballs at you. I'm enjoying these recent ones. Hell, I'm actually enjoying life.