Just fyi, the device at that link is currently showing $9.62 for a single unit, once logged in and the one-time-only "Welcome deals" are eliminated. But AliExpress pricing can vary hour by hour based on seller, inventory, algorithm, RNG.

I've noticed the wild fluctuations in price as well (by $10), is there some trick to timing the RNG right? I'm guessing it's intentional to get you to keep refreshing.

I just bought one for $1.07 US with free shipping. I was buying with a new account so I probably got that discount. But even so, before buying I got $2.99 the first time I loaded the page, then $9.89 or thereabouts, and finally $0.99 (which I bought, it had an additional $0.08 in fees for $1.07 total). We’ll see if it shows up and is hackable, but at that price it feels too good to pass up the chance.