The Wire is great once you get past the "This is just a better than normal cop show" feel the very early episodes have.
Visually it probably loses points because of the dated 4:3 look and the camera angles and such aren't particularly interesting or unique.
But its characters and stories and nuances and subtleties and how they weave make it the best show to depict how cities work. The Wire's Baltimore feels like a real place but not simply because they did location shooting. I don't think there was a single dream sequence or stuff like that the entire series. No "open to the viewer's interpretation" going on.
I suspect it'll age well into a period drama of what a big but not too big American city was like in 2002-2008.
The music was great on the Sopranos too, each song reminded you of the exact episode, and there was a great mix of genres. It would be a long soundtrack, each episode had about 4 or 5 songs somewhere. Listening to that soundtrack would be like going through the series in your mind for repeat viewers.