No. You are not the only one. And all this time I thought I was.
Here's how I theme my KDE:
Style = Light - either 2nd or 3rd revision
Colors = Mist (for Gnome2 apps)
Window Decorations = Web
Icons = Reinhardt
Background = Color Gradient
Do I like more eye candy than this? Absolutely. Dark plastic theme with a black background & Umicons I love, but not at the expense of speed. I can even tell the difference in the slowdown of the system just by adding a background.
But then again, I hit the big 4-0 this year, so maybe it is because I am an old fart!