Simply put, acceleration can be felt in our bodies and can be exhilarating especially when smooth. Gravity acceleration is what we play with while downhill skiing where there is a happy medium of gradients. Few will enjoy slopes steeper than 50 degrees slopes or less than 10 degrees. The novice will most enjoy the latter and the expert the former with most of the rest of us somewhere in between. Thus as one skills increase the ability to enjoy steeper terrain increases. Long ago as a young man, I recall skiing Mammoth's steep 11,000 foot ridge top cornice runs on fabulous wind blown powder days where the skiing surface of the steeps remains baby butt smooth due to all the tiny rolling snow rolling down from the ridgeline, filling in everything continually, with a feeling of incredible edge softness that rates nearly as high as the best powder.
For some, skiing is mainly not about the sensations but rather the accomplishment of performance. Thus their ski days are more like athletic skill, strength, and endurance challenges. For others like this old guy, I have more interest in the sensations than the challenges. Thus even though I can crank quick short swing turns down steeper slopes than few other advanced skiers, I don't seek such places out all that much because I have more fun doing the same on somewhat more relaxed safer less challenging steep gradients where I can play. For all advanced skiers there is a mix of terrain we can choose to navigate, some easy, some middling, some challenging, some difficult, a personal choice that for most of us includes at least a bit of all because variety is interesting. Some have a personal drive always to be seen about more difficult and in fact some appear to feel embarrased to be seen elsewhere. So steeps for some is also a some sort of social macho badge.