If, as many are want to say, hi-fi is in service to the music (rather than and end in itself), then it’s simple. Do you have CD’s? If so, you need something to play them on. If you don’t have CD’s, now is a good time to start acquiring some---they’re cheap, and getting cheaper. It’s just like with LP’s, when they were going out of style. Do they sound good? Like everything else, some do, some don't. So what. Do you listen only to great sounding recordings? If so, you are missing out on a lot of great music.
