All these.
When I see that the younger generation of music fans are content with digital (I'm 43, getting old!), and don't get to experience the full joy of going into a music store and perusing through the latest cassettes/CDs/vinyl - that makes me shed a little metal tear. Hah! I'd urge you to find the closest indie shop that sells second hand stuff, and support them as often as you can. Just go in, not looking for anything in particular, and go hunting. It's an awesome time if you enjoy, realllly enjoy, your music.
Seriously, for those of us that started listening pre-digital/internet - I'd be shocked to hear anyone say that those weren't the best music days of our lives. There's no greater (music listening) experience than finding something kick ass (not knowing it at the time), taking it home, cracking it open, and reading through the liner notes/lyrics while listening for the first time. Amazing feeling.
There is so much music out these days it's overwhelming, literally. I can't keep up, and I like to say I try. It's impossible. With that said, I sometimes do wish it weren't so easy to find new stuff with the Internet. I've been trying lately to curb myself and focus on select albums, spend more time with them, not just listen to it but KNOW it. Lyrics, what the song is about, the names of the musicians. I used to be good at that shit, but man, these days I suck at it.
I was watching part of a live show from Circus Maximus last night, and said to myself, "This guy has to be one of my favorite modern guitarists, the dude is incredible." It isn't the first time I've told myself that either. The funny thing is, I don't know his name by memory! That's fucking lame, lol. You asked me back in the day I would have immediately rattled off 20 guitarists names', told you their history, anything.
I will say I use Spotify to listen to stuff while at work and stuff, vs. carrying around a load of CDs or an ipod, etc. I have discovered some new stuff on there as well using the "Related Artists" link. I also use it to listen to albums I know I won't be buying, because there is too much on my "to buy" list as it is.
ANYWAYSSsss, for you younger dudes - heed the warnings, go buy, and enjoy it!