Like a Shopping Cart? No, that’s way too advanced for Blizzard. You need cookies*. And code. First, ADD a few teaspoons of logic. Sprinkle in a CHECK-OUT page. Pre-heat the ‘CONFIRM’ button. Damn, my as well spice it up with some “users who bought this also bought that”. Add salt as needed.
(* you don’t necessarily need cookies)
PS. See what I did there?
PPS. This is a criticism of the website code, not the game. Seen the achievements page? Most of them are technical names, not actual descriptions. Portraits (on the website) don’t match their…portrait names. The profile pages are so cryptic one would imagine it was meant to be only an internal-use page or view-by-admins-troubleshooting-a-problem-page.
PS3. If you’re logged in, the “buy” button insta-buys that one item, no confirmation. Quite a silly feature for a game/site that doesn’t rely on micro transactions per se.