I truly am.
While Photoshop has wonderful features, some people view Photoshop as something to dislike, or to see as something that only tekkie geeks use.
I see it as an extention of my artistic abilities.
Here are a few examples of how I use Photoshop to help me with my artwork.
Before: taken with my camera, but warped/discolored/lighter/daker than orginal After: What it looks like in person
But as you can see, I don't know how I'd have my finished pictures looking correct without having a little digital help. And since I have a Fine Art America account (FAA), I need my pictures to look as much as the real thing as possible.
Now, I don't always do this, as I normally don't take photos of the artwork with glass and frame, so I usually don't have to worry about making sure something fits in another photo. But in instances like this, it's really handy.
I also don't have an expensive camera. That means that I can't take the greatest photo I could, so having a professional program to help me out is a fantastic thing.