100%. I'll be honest (to myself and everyone else) and say my main objective was "fun". The theraputic/antidepressant effects were a nice bonus. Words really cannot describe the experiences you can have, it really is like stepping into another dimension. Of course, it's not for everyone. It's different from most true blue psychedelics in that while reality may be warping beyond comprehension, it also has the effect of making you sort of an "observer", disconnected (thus - dissociated) in a way. Whereas LSD/mushrooms/etc put you right in the thick of it and is pretty much the opposite of being disconnected. I was a pretty hardcore psychonaut until I finally decided I'd had enough 4 or 5 years ago and, relative to other substances I've messed with, it was pretty easy to just stop. YMMV, as always. While not really comparable to something like a full blown opiate dependency, ketamine addiction is real and some people do have serious problems with it.
I did experiment with much lower doses a few times but I always ended up wanting and then doing more pretty quickly. But I did enjoy "microdosing" a couple of the analogs (RCs) that have a much longer duration. Even moreso than regular ol' ket you absolutely must respect those analogs, though... they can and will kick your ass (and psyche) if you don't. And you're putting a lot of trust into some shady lab in China that's producing them. Though the same can be said for a huge % of the illicit ketamine supply... most of that stuff ain't coming from "official" pharma sources. Last I knew India had a large share of the black market ket production.