The Oklee company sells more than one weight of batting, but their 60" Econo batting is perfect for Lutheran World Relief quilts, which are mostly sent overseas to refugee and disaster situations. I have used their batting, and I would say that its only drawback might be a slight unevenness in thickness and an occasional presence of a slug (or whatever you call a tiny thick bump). This is of little or no consequence in mission quilts. These quilts are used for warmth, shade, mats to cover a dirt floor, or sometimes room dividers for privacy. They may be washed a lot or not washed at all. They are not meant to be heirlooms or last for generations. They are made for a specific purpose in survival situations. There is a shipping expense and specifications for dimensions of 60" x 80", and this comes from years of experience in "mission" situations by that organization.
In the geographic area around Oklee, MN, there are many Lutheran sewing groups making quilts for Lutheran World Relief, and that company has for years provided batting that meets the need for a reasonable price. You may visit LWR.org to learn more about the quilt ministry. A sewing group may choose to use a higher quality batting, but then they would not be able to afford to make the quantity needed for distribution to folks who need the quilts around the world.