It's marketing 101. Most games have them and you should be thankful you got a year in before this was implemented. If it bothers you so much that other people will pay for an emote that you don't have , then you sir are exactly the type of consumer they are looking to snag, $2.99 at a time:)
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I for one will most likely buy one or two, because 6 dollars is worth less to me than 10 hours of my time grinding away to find others.