In my opinion, a shoulder mount conveys the size and beauty of an animal much more so than a European or a plaque mount. But, your space, the cost and your personal taste certainly are part of that decision. It doesn't matter what anyone else thinks - it only matters what you think (or your spouse/family).
I mount my own deer, which does make the cost not as much of a concern. However, I have mounted quite a few so our house is full (15ish Whitetails, plus others). With so many, a few years ago my wife and I decided any more Whitetail mounts would have to be a truly mature deer, scoring over 160. Within a year or two of that decision I took a mature, non-typical buck that scores in the mid 150's. He was a beautiful gray muzzled old deer, but I didn't mount him. I did put him on a plaque and hung it up beside other bucks in the same size class. To me, the plaque just doesn't capture what that deer was and I do regret not having done him. Since then I have mounted another buck (smaller than him) and plan to mount the deer (a mid 150's heavy forest deer) I took this past fall. For myself, a shoulder mount keeps alive the memory of that deer and the experience I had.