They do actually official albums are behind the counter and there's a clothing section of Ateez merch at the back of the store however it's unofficial.
Most things in the K-Pop store are unofficial and overpriced including the albums. Just a few examples, you can get unofficial or possibly official BT21 merch on the WISH app for cheaper than the k-pop store. Another example, the latest BTS album is $25 at target and walmart but it's $40 at the kpop store. It's most likely overpriced just for the convenience of selling k-pop merchandise in America so if you're willing to spend a lot of money either way it is better to search for the official merchandise online.
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