Nope, and my favourites collection proves that. Its just that making a photo-realistic artwork that isn't an actual photo is incredibly hard...A good photo is hard and time-consuming too, but I still think making an image from scratch would be harder.
For me it's a lot easier to make the photorealistic nature painting than to move to Africa or South America, go through the jungle full of dangerous insects, climb onto the tree and finally take pics there. I'm not saying about shots from the higher altitude or panoramas of other planets. It's almost impossible.
Yeah, some of the best photographers here are lucky enough to have the time and money to take photo's from all over the world...Of course, there are millions of much lazier people who just take snapshots from their own backyard, but I guess thats no different than lazy people who draw sketches that are not to the best of their ability...I guess any artform can be as hard and as time-consuming the artists feels it needs to be.