The albums I've played a shitload of times:

Led Zeppelin---Led Zeppelin II, the fourth album, How the West Was Won, Physical Graffiti

Bob Dylan---Highway 61 Revisited, Blood on the Tracks, Blonde on Blonde

Jefferson Airplane---Surrealistic Pillow, After Bathing at Baxter's, Bless Its Pointed Little Head

Cream--Disraeli Gears

The Doors---The Doors, L.A. Woman

Bruce Springsteen---Born to Run

Fleetwood Mac---Rumours

Pink Floyd---The Dark Side of the Moon, The Piper at the Gates of Dawn, The Wall, Animals, Wish You Were Here

Country Joe and the Fish---Electric Music for the Mind and Body

Janis Joplin--Pearl, Cheap Thrills (with BBHC)

Jimi Hendrix---Are You Experienced, Axis: Bold as Love, Electric Ladyland, Live at Woodstock

The Beatles---Sgt. Pepper's Lonely Hearts Club Band, Abbey Road, the white album, Magical Mystery Tour

The Grateful Dead---Live/Dead

Cat Stevens---Tea for the Tillerman

Neil Young---Harvest, Rust Never Sleeps, After the Gold Rush

J. J. Cale---Naturally

Stevie Ray Vaughan---Texas Flood

I'm sure many more would come to mind as well.