Today is the 20th anniversary of the release of Nirvana's landmark second album Nevermind, and I have just come back from the store with my copy of the 40-track 2CD deluxe edition. Even though I missed out on getting the worldwide limited edition with all those extra things, this version, with the full remastered album, studio demos, B-sides and live tracks, is still a worthy purchase. Rest assured that I cranked the album up to full volume when I got home! And it hasn't lost one bit of punch after 20 years – it was and still is my favourite album of all time.
UPDATE – Oct. 13: I just noticed something.
Seen above are the two ultra-deluxe versions of the 20th anniversary edition I found yesterday (and no, I didn't get to buy them). On the right is the vinyl release, comprising four LPs, and on the left is the ultrasupermega-deluxe-not even Butch Vig himself could get a copy of this-version, with outer slipcase, glass (?) cover and photo book ($165). Both have the same music content, but the cover of the vinyl version has something that the ultrasupermegadeluxe version, the double CD version and the remastered single CD version don't have.