Smiski prices Korea vs Japan

Hi! First time poster and new collector :)

I'm about to go Korea and Japan in a few months - wondering what the smiski prices are there and whether it's better/cheaper to buy in Japan and/or Korea! Either way it'll be much cheaper than here in Australia 😅

Also, I have heard there are shortages and a lot of places are out of stock recently - anyone who has been to Korea or Japan recently and have recommendations of where to go that still has stock?

Thanks in advance!