I made the decision to drop all 40K, including any future Kill Team, recently. All I can say is even whales get sick of being harpooned all the time, and they certainly don't like jumping through hoops to get the latest product. Buying 40K things when you haven't actually had a game since 7th edition is a bit silly I have to admit.
What made me take a good long look at myself was when I found myself waiting outside my local Warhammer from 7:30AM to get Kill Team: Gallowfall. Four other people arrived to wait with me before they opened at 10:00AM to get the 1 copy the store had. It certainly puts a downer on things when you see other folk disappointed in person. Then when Ashes of Faith sold out within seconds on the website I realised trying to buy the product simply wasn't pleasant anymore.
The ever increasing prices, watered down rules, rapid redundancy of expensive rule books, the 'rapid seasonal rule updates' etc... All of that annoyed me but still didn't stop me. Ironically, it was the FOMO and literally not being able to buy the product that stopped me wanting to buy the product.
Sorry for the little rant, think of it as an addict smelling the coffee. Still on the bright side, as I get round to eBaying the 40K stuff that I can't use in the Heresy, it will raise funds, and allow me to declutter. I'll probably use the funds to get the bigger Heresy Lords of War I've always wanted (or 3D print them).
I haven't dropped out the hobby entirely, I have an entire Heresy legion in the process of being assembled and all the Necromunda releases I've been slowly working through. I find both of those systems are much better for me. Less rules updates, less models to field a game (for Necromunda at least).