Prices for Richard Wright's Black Boy

In my studies of different versions of Richard Wright's Boy Boy, I began taking note of the original prices. Here's a rundown.

1945: Harper and Brothers (hardcover): $2.50
1951: Signet (paperback): $0.25
1963: Signet (paperback): $0.75
1966: Perennial Classic (paperback): $0.95
1970s: Perennial Classic (paperback): $3.95
1989: Perennial Library, Harper & Row (paperback): $6.00
1991: Library of America (hardcover): $31.50
1993: HarperPerennial (paperback): $7.00
1998: HarperPerennial (paperback): $10.00
2005: HarperCollins (hardcover): $24.95
2006: HarperPerennial (paperback): $14.95
2008: HarperPerennial (paperback): $16.95
2020: HarperPerennial (paperback): $17.99

Related:
• A Notebook on Richard Wright & Book History