What are the "Must have" LP's?


I have recently re-discovered the LP. I listen to Jazz, blues, classical, and some rock. I was curious as to what my fellow audiophiles here on audiogon believe to be the albums that you simply MUST HAVE. As a sub-question, What LP's do you use to show off your system? Since I am just getting started, I have no real opinions yet, but as I become more and more familiar I will post my findings. Thanks.
limabean683
Chet Atkin's Progresive Picking, Yes's Fragile (UK Plum label), Richard Thompson's This Old Kit Bag, Leinsdorf's Romeo and Julliet on Sheffield.
Anything to do with Talking Heads. Solo projects as well as group efforts. The mix and sound are as good as vinyl gets.
Not only do I like a particular artist, I collect by label. In Jazz, Prestige, Savoy, Good Time Jazz, in Blues,
Excello, Flyright,Wolf,Acoustic Sounds, Blue Horizon, In Rock I generally like British pressings of Cream, The Who,
The Doors, The new Mofis with Allison Krauss & Union Station ios an absolute jem alokg with Eva Cassidy's Songbird.
Pink Floyd:Dark Side Of The Moon
Steely Dan Aja
Rolling Stones: Let It Bleed
Patrcia Barber: Some Kind Of Blue
Smashing Pumpkins: Mellon Collie And The Infinate Sadness
Pink Floyd:The Wall
Beatles: Sargent Peppers Lonley Hearts Club Band
The Doors (1st record) and LA Woman
Jimi Hendrex: Are You Expereienced
Bob Dylan: Blood On The Tracks, The Freewheelin' Bob Dylan, Bringing It all Back Home And I'm just getting started, folks
MCA Heavy Vinyl / Dave Mason : Alone Together
MCA Heavy Vinyl / The Who : Who's Next
MFSL The Eagles / Hotel California
Blue Note 180 gram Pressing / Cannonball Adderley : Something Else
Sundazed 180 gram pressing / Love: Revisted
Yasef Latef : Lost in Sound
Oringinal Pressing / John Cougar Mellencamp : American Fool
All these sound so good on my Turntable.