Two Three out of the six first (re-)release colours of the Sailor Professional Gear Slim Mini, in the since-discontinued design with the external thread at the end of the barrel (for securely posting the cap without scuffing the barrel's glossy finish), are on 50%-off offer at Bunbougu.com.au. The discounted price is AUD $172.50 each, and just one would qualify for free delivery (to Australian addresses). That isn't a bad price at all for local stock.
I was absolutely chuffed to be able to secure yet another colour of that old design, when I was in Tokyo earlier this month. If I didn't already have the two three colours on this offer from Bunbougu, I wouldn't be posting about it now, but would have already snapped them up; they were obviously my first choice colours, already bought at just under US$100 each, three years ago.