Well, what can I say ? I have loved this since it came out, but I am only a lukewarm Who-fan when it comes to the rest of their material. I recognize their influence, of course, but, I listen much more to Zeppelin, Stones, even Sabbath, from that period and genre, although Won't Get Fooled of course is a great song.
Now, having lived with this music for so long, I can't imagine living without it, nor can I even begin to think how it would sound to someone who has never heard it; maybe you had to be there when it came out to appreciate it, or maybe it is a timeless classic, like I think, but what do I know?
Soundwise, I'd say if you want it, the Blu pure audio is the one to get, it has surround as well as stereo in hi-rez, but why don't you check it out on Spotify or similar first.
Or just go for it, even if you are disappointed, it is not a hell of a lot of money!