I tend more to follow suggestions of knowledgeable people. Samples are just samples, I need several listenings in order to "understand", like wines, it needs time to ripen in my mind.
My favourite Doors album. My copy has a "transparency "'front cover photo of the band with the yellow background coming from the inner sleeve. The cornets of the album cover are rounded off to give the impression of a mounted 35mm transparency . Cool idea totally lost with subsequent reissues.
My copy too has this cover.
Talkin about cover/sleeve I have this one that is nice too:
Jethro Tull's Stand Up
Sundazed reissue. Edit: actually it's a original Ode, stereo.
Got the input from the news:http://www.theguardian.com/music/2014/may/19/led-zeppelin-accused-stealing-stairway-to-heaven-opening