These flutes are also known as "Love Flutes", "Courting Flute", "Native American Flutes (NAF)" or "Native American Style Flutes". My views on The Term.
For more information on this type of flute, go to: Flutopedia, or Native Flutes Walking.
Image Gallery- Flickr
Block Flutes: HI: $100 MID:$200 LOW: $300 and up Lower keys $400+
OTHER TYPES: Pueblo-style Rim-blown Flutes, Eagle Bone Flutes, Single-chambered Block Flutes, My Flutes