Now I have a quad system and the BluRay of DSotM with both the newer James Guthrie 5.1 and the original Alan Parsons Quad mix - and no pops or crackles.
You must have the Immersion Box Set (not related to Mr. Roach ). I was thinking about getting that, is it worth it for the surround sound mixes?
I have the DSotM and WYWH Immersion boxes (The Wall box did not contain any surround mixes.) I definitely found them worthwhile for the surround mixes and each set contains both the original quad mixes and newer James Guthrie 5.1 mixes to compare and contrast. As for the rest of the content, each box contains a corresponding live set from 1974 which are interesting and enjoyable and the DSotM box has a CD with some interesting out takes like the Travel Sequence (replaced by On The Run) and an early rough Parsons mix of the album. There's visual odds and ends too, such as Concert Screen Films, live tracks and a doc. DSotM has one more disc.
As for the rest of the detritus: the books are good, coasters OK, DSotM marbles surprisingly charming and I was pleasantly surprised when my wife said she'd grab the scarves and wear them at school. (She teaches high school.) Other than scarves, all the junk resides in the boxes. The CDs have been ripped for my iPod and the BluRays inserted into old DSotM and WYWH CD cases and placed into my surround shelf for easy access. I love being immersed in these albums. WYWH is my personal favourite album for SOYCD alone.
The prices on Amazon often seem to dip, which helps offset the regular high price, but they "may" be getting scarcer. Also investigate Amazon.ca to take advantage of the weak Canadian dollar.