Like many others, I bought everything and anything when I came out of my Dark Age (around 2012) but quickly realised that cash and space were going to become an issue rather quickly. I decided restrict my collection to Star Wars and some classic stuff like pirates/castle/space (mainly for nostalgia reasons!) and sell off the rest - although I haven't quite got around to actually selling that much of it yet!
In the last couple of years though, I've seen a steady decline in the stuff that I actually want in the Star Wars theme and apart from Kylo Ren's Tie, there's not much from the last wave that I'd consider "must have". Some of the smaller sets I'll probably pick up if there's a big enough discount, and even then probably just for the minifigs, but the rest I'm not going even remotely interested in and won't bother with. None of the leaked stuff I seen for later in the year has me overly excited either.
I'm not sure if this is a reflection on the sets themselves, a bit of over saturation with the theme or if I'm just losing interest. I still visit Brickset daily and still love to build when time permits so hopefully just a "blip" with the theme.