Suggest one obsure album we all should hear

Pink Floyd Meddle

Great thread. Many of my faves already mentioned and several that I'm going to seek out. Here are a couple that I love and are a bit obscure if not really rare.
Hall & Oates - War Babies (not like their early stuff or later pop junk, a real masterpiece!)
October Project - Falling Farther In
Graham Parker - Mona Lisa's Sister
Joe Jackson - Beat Crazy
Stabilizers - self titled
Johnny Winter - Johnny Winter And
The Kinks - Village Green Preservation Society (even if you think that you don't like them)

Cheap Trick- first two 
ZZ Top- Fandango
Rory Gallagher- Calling card
Pat Travers Band- Go for what you know
Frank Marino- What’s Next
Ted Nugent- Free for all (meatloaf on vocals)

Since @1111art seems to have an appreciation of 70's prog, I will suggest:
 Nektar- A Tab In The Ocean

Not sure if that is obscure or not these days.  If you reside in a state where pot is legal, it will help.

Obscure Arizona group, similar to blood sweat and tears.& Chicago.........Eclectic Mouse..........( circa 1970??72)....you can find individual traks on youtube..............also "Barefoot Boy".... By Larry Coryell.........early fusion masterpiece!!!!......Shakti' s first lp as well.....