Target is a large retail store here in the US. After the holidays toys and other items go on sale, cheap. I think someone made a mistake because the v3's should not have been on clearance pricing.
Even my 5 year olds have figured out how to play with their tamas, they love them!
I recently got all 6 of the v3 for my daughter at Target. They were mismarked in the Clearance aisle for $3.74 each with the v2 ones. I gave them as party favors for her 10th b-day last week. She loves playing with them.