I'm using spotify daily. You can say, I use more often than youtube or other programs. Even if I'm an meme fan, what means I use YouTube a lot. I don't pay nothing for spotify, btw. No ads, infinite skips and just peace out. I've seted up pretty good equalizer, so I can listen to music in very good quality. You can even listen to it through some cheap 3 euro earbuds and will still feel every note, everything. Well, of course I do doubt that things wont change if I would buy myself some 50/70 euro earphones, but I don't quiet care right now.
For me spotify is big thing, because it just has everything I need. Albums, LPS, EPS, mixtapes n shit. For my musical taste it has everything I would need. Of course, there is some music that is not in spotify, but I wish it would be there. But I don't worry. I just go in YouTube, download it and just listen.
So, quality is great, choice for me there is very huge. Favorite artists/genres etc. I can easy say that spotify really made me listen to more good music than youtube did. It just creates those daily mixes, and you begin finding new bands/songs, and your musical journey goes on.
Since I'm a teen, I still don't own car (soon will, I hope so), I don't really worry about listening to music in car, but even then, I would not need CD's in car. I really think it's just an hobby to collect music in CD's. And since I can stream music from spotify, and I do it for free - I don't have to worry at all. I'm using every chance to spend less money on such things. And no, I don't think it's not right, I just know where I have to spend more cash and where not. I prefer carrying music in pocket more than keeping it in room/PC. Phone is always with me, plug it to speakers and rock on.
And no, I don't mean that musicians don't deserve to be payed. Well, rappers these days really don't deserve shit for what they're doing (says rap fan ;d), but musicians who work with instruments and voice (good singers n shit) really do, but they already get what they need to since they go on tours/perform for people, sell records worldwide. I don't want to be that "only asshole in village" but in meantime - I don't have enough money to support my favorite musicians. Who knows, - maybe one day I will be father with 3 kids, long beard, glasses, boring office job and full room of CD's (I really hope no).
Anyways, sorry for my language mistakes ;d