Staple Singers: vinyl, CD and cassette prices

Compare the price of 4 Staple Singers records on vinyl, CD and cassette in UK record shops.

CDStaple Singers - Best Of The Staple Singers£6Sister Ray1
CDStaple Singers - For What It's Worth (The Complete Epic Recordings 1964-1968)£35Sister Ray1
CDStaple Singers - Stax Classics£13Sister Ray1
CDStaple Singers - The Ultimate Staple Singers£21Sister Ray1