My Amazon.com aStore - Why aren't these movies on DVD?

Listmania!

Why aren't these movies on DVD?
By an Amazon.com customer

	Raintree County [VHS] Buy used from: $5.20
	Circus World [VHS] Buy used from: $2.28
	55 Days At Peking [VHS] Buy used from: $2.57
	Western Union [VHS] Buy used from: $11.99
	The Miracle Woman (Restored) [VHS] Buy used from: $19.95
	Trail of the Lonesome Pine [VHS] Buy used from: $2.99
	Souls at Sea [VHS] Buy used from: $4.99
	Valley of Decision [VHS] Buy used from: $36.37
	Lone Star (1951) [VHS] Buy used from: $25.50
	Vengeance Valley [VHS] Buy used from: $1.48
	Westward the Women [VHS] Buy used from: $35.99
	Stars in My Crown [VHS] Buy used from: $39.99
	Susan Lenox: Her Fall & Rise [VHS] Buy used from: $6.55
	Two Rode Together [VHS] Buy used from: $4.96
	Days of Glory [VHS] Buy used from: $6.00
	Supernatural [VHS] Buy used from: $6.55
	Conrack [VHS] Buy used from: $42.99
	One on One [VHS] Buy used from: $15.57
	Spawn of the North (B&W) [VHS] Buy used from: $15.95
	Blood on the Moon [VHS] Buy used from: $24.95
	Along the Great Divide [VHS] Buy used from: $3.49
	Walk the Proud Land [VHS] Buy used from: $14.99
	Texas Rangers [VHS] Buy used from: $6.24
	Texans [VHS] Buy used from: $4.92
	Red Ball Express [VHS] Buy used from: $31.46
	The Eagle and The Hawk [VHS] Buy used from: $9.96
	Shake Hands With the Devil [VHS] Buy used from: $29.99
	Red Dust [VHS] Buy used from: $11.75
	Pony Express [VHS] Buy used from: $4.63
	Across the Wide Missouri [VHS] Buy used from: $13.98
	Two Years Before the Mast (B&W) [VHS] Buy used from: $19.99