I think you're definitely gonna find photography harder and therefore I think it's more of an interesting medium than photoshop (or any digital media), this doesn't mean you can't use a digital camera, just that photography is more interesting as an art form.
This would be an entirely computer generated image I chopped, not really any challenge (i did this after about a month with photoshop on my comp).
Then there's ones like this that are real life made fun, this isn't art, just fun.
This I think falls into an interesting category, I don't think it's art, but it's still neat. I took a picture of a roommate in that outfit in front of a box with a light in it, then I biuld a cave almost from scratch.