The Doobies were the Quads (+Hissing Of Summer Lawns) I really wanted as a student, but the cost of the CD-4 demod was too much (I'd bought the Shure cartridge - which I still have somewhere!), so I never bought any Just the few SQ LPs I could find. I saw The Doobies over 15 years ago supporting Foreigner, they were incredible and musically blew Foreigner clean off stage, who were way louder - and I really like Foreigner.
Two things gave me More Than a Feeling that Quad was dead or dying:
1- Quadradisc stickers on Hissing of Summer Lawns and One of These Nights instead of dedicated Quad jackets
2- No Quad release for Boston
I loved the Doobies from the first time I heard Listen to the Music. I've seen/heard them live several times. I'm complete on them, including Kwads, SACD's and Blu-Rays. IMHO, Takin' it to the Streets is their best album.
Perhaps the Quads will get a digital re-release when MoFi's licensing agreement is over. Jewel Boxes would be nice, too, rather than sleazy cardboard sleeves. Jim at MoFi likes to do it "on the cheap" and hates surround.
I recently watched the Doobies documentary on Blu-Ray. It's excellent and has some great bonus live performances. My only two bitches are small ones:
1- No mention was made of Moby Grape's Skip Spence, who was instrumental in the Doobies early story
2- Also no mention of them going by the name Pud early on
Mention was made of that "Moby Grape sound" when they added a third guitar by adding the odiferous Mr. Baxter. BTW: Moby Grape is my all-time favorite band.