This is fairly normal, Edition 5 is going out of stock when Edition 6 is released. Some famous youtuber puts a link to Edition 5 and drives demand/traffic on th

This is fairly normal, Edition 5 is going out of stock when Edition 6 is released. Some famous youtuber puts a link to Edition 5 and drives demand/traffic on the item, and boom $50 manual becomes $5,000. Edition 6 is still $50.