It'll probably go back up at the same price or at 1k yen more.
I didn't know that's how it worked. I started off with a -3 exp coz I cancelled a few stuff when they introduced their new system.
The good news is HLJ didn't forget to limit their quantities and they actually cancelled multiple orders so we'll definitely see them pop back up in May.
I still remember the time they refused to honour the shipping price they quoted in their invoice, claiming something along the line of increased cost. Meh.
They took more orders than their actual stock so you're better off looking elsewhere. Someone I know messaged HLJ and they told him they're 'trying to secure more units' which pretty much translates to 'no more stock'.