It's just 10% off and it ends soon. I haven't bought any in about a year but will go for the complete Zurich '73 (I'm feeling weak & completist as part of it is on The Great Deceiver) and possibly a the Denver '72 (the more recent concert release, not the very early Summit? studio release.) This need probably comes out of expecting to be buying the next round of 40th Anniversary releases but they've been put off until September.
I've ignored those recent reissues because they just reissued everything between 1999-2001 (and they sound fine to me), and I don't have DVD-A, or any interest in watching archival videos more than once. Robert Fripp may deny being King Crimson, but he is definitely the King of Reissues.