Kobo Canada has
The Science Fiction Hall of Fame, Volume One 1929-1964 on sale for $2.99 Cdn. As usual, I suspect that Amazon and Kobo US have the same pricing.
Originally published in 1970 (I still have the paperback somewhere), it's definitely worth the price. With an introduction by Robert Silverberg, it includes the following stories:
"A Martian Odyssey" by Stanley G. Weinbaum
"Twilight" by John W. Campbell
"Helen O'Loy" by Lester del Rey
"The Roads Must Roll" by Robert A. Heinlein
"Microcosmic God" by Theodore Sturgeon
"Nightfall" by Isaac Asimov
"The Weapon Shop" by A. E. van Vogt
"Mimsy Were the Borogoves" by Lewis Padgett
"Huddling Place" by Clifford D. Simak
"Arena" by Frederic Brown
"First Contact" by Murray Leinster
"That Only a Mother" by Judith Merril
"Scanners Live in Vain" by Cordwainer Smith
"Mars is Heaven!" by Ray Bradbury
"The Little Black Bag" by C. M. Kornbluth
"Born of Man and Woman" by Richard Matheson
"Coming Attraction" by Fritz Leiber
"The Quest for Saint Aquin" by Anthony Boucher
"Surface Tension" by James Blish
"The Nine Billion Names of God" by Arthur C. Clarke
"It's a Good Life" by Jerome Bixby
"The Cold Equations" by Tom Godwin
"Fondly Fahrenheit" by Alfred Bester
"The Country of the Kind," Damon Knight
"Flowers for Algernon" by Daniel Keyes
"A Rose for Ecclesiastes" by Roger Zelazny