Sometimes hair that is your length is easier to put up - especially if it takes a curl well. Really long hair can be too heavy and pull the curls down or sometimes its hard to hide all the length - sort of winding it around and around and pinning it.
Right normally with my mid-back length hair I wouldn't have been able to have the curls at the side of my face, because the curls would have gone all the way down past my shoulders So that was a good thing, to have the shorter hair and be able to do those tendrils. I like having my hair all the same length in general, to fit into a ponytail.
We'll see going forward what I do. I really don't like short hair on me (above the shoulders) but right now it does go into a ponytail and is just at my shoulders. So I'll let it grow out mid-back but I may stop there this time. I may be getting to the point that the cancer donation places won't take it any more, due to me being almost 40.