Why are so many people spending so much money to build “perfect” streaming system?

@walkenfan2013 -- just to add one comment -- are you unaware of the amount of money that can be spent on turntables and phono preamps for LP playback? You can easily exceed $100K for a turntable if you wish. Same thing for CD players -- you can spend tens of thousands, and that's without going to a separate DAC.

With audio, as with almost any hobby, you can get as carried away as your urges and budget permit. But you can put together an eminently enjoyable streaming system for no more than you'd spend on an equivalent level vinyl or CD setup.

Interesting how @walkenfan2013 has disappeared from the conversation.  Guess he continues to think that, somehow, streaming is more expensive than other forms of audio playback.

Even though I do a lot of streaming, it is NOT part of the argument that you have to give up any other format.  Like others have noted, I have many albums in my local collection that are not available on streaming and never will be -- for example, the ones that weren't commercially available releases. (I spent several years transferring a hundreds of LPs and open reels to digital.)

My system integrates my local collection and my Qobuz account seamlessly -- no problem to play one song or album from my local music and the next one from Qobuz. 

So, suggesting that going to online streaming requires one to discard your existing collection makes no more sense that saying back in the 1970s that you couldn't listen to FM or cassettes if you had a turntable.  If I like the music, I'll take it in any form I can get it.