Well lets see, has anyone heard of Ansel Adams and if you have do you like his work and why do you like his work,because it stands out over and above everyone elses. Now Adams used a system called a Zone system and what it was was a purposefull manipulation of the three elements used in photography. 1 film 2 development and 3 printing. The end results was his pictures turned out like what he saw with his eye. It is a know fact that film ( Sensors) lie. A perfect example is when you take a photo of a scene which includes trees,grass houses and a sky, our eye see it in perfect harmony but film has a limited view and the sky is either burned out or the forground is under exposed. So enter Photoshop and it becomes to todays photographer as did B&W darkroom. I use it to bring my photos into it proper persepective. It allows me to make it as I saw it and that is ethical. Ok incame digital and it has one draw back, White balance and I have to say my G3 does a pretty good job, so most photos I take I add contrast and adjust color if necessary and once in a while I use curves to make it pop.
Now so you know if all you want to do is take Photos then Digital LIght and Color system is all you need.It is geared to just photo adjustments. I think Photoshop is an expensive tool for just that.
Photoshop is used for retouching old photos, Photo art like if you were an artist ( I turn photos into oil painting and sell them to real estate sales agents. But most of all it is used by some very talented people who do all the advertising you see and lastly if you have a black & white photo and want to turn it into color, then you need photoshop.
By the way most pros in the begining felt the same way and now it is god to them, They can make there photos look like what they see. So your not doing something bad your turning it into what your eyes see and to me thats good.
Man nice pictures.
By the way I agree that if you can make it happen in the Camera its all that much better but some times you cant use your graduated neutral density filter and some times you do not have your polorizer and some times the lighting does not cooperate, so adjust not minipuale, i minipualte for Photo Art.