If we're talking compilations: All albums by Gas (all out of print) are being reissued on the 6th of June as a 4-disc boxset:
Nah und Fern. I only know
Pop so far, which is more than amazing. I'm very excited to hear the rest.
Oh, and anyone who doesn't dislike Metal a lot should definitely try the new album by Esoteric, The Maniacal Vale. Pretty much the best doom metal album I've ever heard.