It seems I've offended a good number of pilgims with my question, unintentionally. I actually am not thinking of skipping entire stages, but rather small bits like industrialized, busy inner city parts that I have heard from other posters are not very interesting or relaxing (like taking a taxi or train a short distance to a nicer spot when walking it would mean walking down roads, past factories or beside heavy traffic). I'm definitely into the full experience of doing a camino, with varied experiences both in nature and in beautiful cities and I plan to spend every day walking pretty much the entire day. But as someone who frequently has to get my walking in around urban areas, I know that I prefer to skip that part if possible to go towards beautiful nature or quaint towns like Santillana del Mar or Oviedo. I also like to occasionally go off the beaten path to explore little things that catch my interest, before returning to the main route. In other words, I'm never going to be that person that has my entire route from Point A to Point B mapped out, with how many Km I have to walk every day continuously to meet that goal. It's just too rigid for me, and I know that my enjoyment of the Camino will come with being flexible. Unfortunately, the only part that isn't flexible is my time off, so I have to make the most of the days I do have which led me to ask this question. If I don't make it all the way to Santiago, that's ok because it just means I'll come back some other time to finish
What is important to me is the experience, as it is to all of you. It's just how we define it that is a individual to each of us.