The Who, The Who Sell Out
Track Records released this album in 1967. The band's third studio album was paired with unusual concept art and fake commercials in order to set the band apart from their rock contemporaries. Half of the records were pressed in mono and included a butterfly poster, and if you have that one, you can sell it for $1,100.
Nirvana, Love Buzz
Nirvana released this cover of the Dutch band Shocking Blue's "Love Buzz" in 1988. It was their debut, featuring a B-side called "Big Cheese." It was released on the Sub Pop label, and if you have a copy with the B-side, it sells for $3,000.