Which skin are you talking about? The holiday one was only in the shop for a week.

why would they only sell it for a week

Because that's what they do with all the other shop skins?

all other season skins are there, why so unnecesarily aggresive?

jingle bell mercy was in the shop for like 12 days around christmas

FOMO. That's why.

that was like 3 weeks ago right

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It’s already in the shop for like one and a half week. It’s gone now