I'm big on physical media and this is my view. Blurays I once thought were just a scam to get me to buy everything all over again on Blu, but Blus are strong products and the some picture quality improvement and sound quality is very legit. The old 60s UK show The Prisoner is marketedly improved on Blu vs DVD, for one example. So I buy some blus for some things.
That being said, I'm definitely not doing the 4K for now, and still do see that as racketeering, as: just a scam to get me to buy everything all over again. As I always tell some people, I don't need to see the pimples on everyone's face in high def. Bluray is fine enough for me.
I'm not some technology nerd like some in the physical media world (in fact, I'm a bit of a Luddite), not that that there's anything wrong with being a tech nerd, but I personally am not too hung up on that focus, instead I know just enough about certain specs to know what to buy/appreciate and what not to buy/appreciate.