One lp I bought which would fit into this category is Hawkwind's Space Ritual - bought on a nostalgia whim in the late 70s whilst remembering In Search of Space. Must avoid sale bins!!Talking about nostalgia, I'm tempted to try and get early Tyrranasaurus Rex - we used to listen to it on the PA at Bearwood Skating ring during games at school (much better than the soccer, cross-country running or rugby others would choose), however, I'm too embarred to look in the T. Rex/Marc Bolan section.
Keep 'em coming!!!
Rana