Building a 100 album vinyl collection 3 must have albums are?

I own many of the LPs suggested and agree they are great records.  However, my criteria for 3 must have LPs would need to take into account how they actually sound of a good system.  Many of the LPs I grew up loving, get very little play today as they just weren't recorded very well to start with.  So classic LP's that also sound great:

Junior Wells - Come On In This House

Joshua Redman - Elastic (/Brain Blade's drumming is fantastic throughout)

Jimmy Smith - Dot Com Blues

@dougsat 

Oh, yes… those too.

Idris  Muhammad  "Power of Soul"

Climax Blues Band " Shine On"

Steppenwolf "7"

@norton Don't hear a lot about Climax Blues Band.  Always liked them.  Recently picked up a nice box set (Amazon) containing their first 5 recordings.  Put out by the Esoteric Recordings label.  Going back to 1969 for the first two records, it's very impressive the use of soundstage.  Some great engineering.  

1) Alan Parsons,  "vulture Culture" 

2) Moody Blues, " in Search of the Lost Cord"

3) Beatles, " Abby Road"