It's on Alibaba, which most if not all items are being sold in bulk for reseller businesses worldwide hence the minimum for the lower prices.

With that said, can someone with a healthy bank account purchase some? LOL. Like what are you even going to get? A flash drive with like 128mb memory for you to be able to save a .txt file on it? They even have a 128gb variant. Are you supposed to store movies on it too? lmao. Might look for other similar deals that accepts one item purchases for the lulz.