Aside from slower battery life, I've noticed no real performance degradation on my 2015 iPad Pro 12.9." I have plenty of storage space. I just upgraded to the new iPhone XS MAX, which I believe will take up some of my iPad tasks (such as movies) while traveling. Finally, I may be buying a new Macbook this year if Apple delivers on a nice, 13" Macbook in a new form factor. Given all of this, upgrading the iPad seems low priority. Thoughts?