To answer Tjnif, I only deliberately seek out two copies of any LP I really like. With pop/rock, however, I just can't resist a really pristine copy when I come across a $1 or $2 copy in the used bins. I suppose I can also rationalize that when I become old and demented, I'll have an inexhaustible stock of pop/rock fom my adolescence plus a few to hand out to the kids. That said, I have five of these:
Led Zep III (including Classic)
Heart Dreamboat Annie
Rickie Lee Jones eponymous
Steely Dan Aja
Pretenders first three releases (including Nautilus)
Rush Permanent Waves (including MoFi)
Wall of Voodoo Dark Continent
Police Regatta De Blanc
(from the '90's) Man, or Astro-man? Experiment Zero
Led Zep III (including Classic)
Heart Dreamboat Annie
Rickie Lee Jones eponymous
Steely Dan Aja
Pretenders first three releases (including Nautilus)
Rush Permanent Waves (including MoFi)
Wall of Voodoo Dark Continent
Police Regatta De Blanc
(from the '90's) Man, or Astro-man? Experiment Zero