Holiday Sale price differences

Specifically, the World of Warcraft Complete Collection, Heroic Edition and Epic Editions listed on sale for $89.99 and $109.99 on today’s page. But if you go into one to gift it to someone, it reverts to full price $124.97 and $144.97 respectively. Since I believe the sales may end today, its unfortunate that I couldn’t buy it for a family member.