That's somewhere in the vicinity of about $5. That's not a bad price for Hamleys. Deduct the VAT and add shipping it might come in a bit less than that. Sadly, I won't be back in London until at least March, and likely not until summer. I'll stock up then.
I've never known them to do an exclusive there, which has always surprised me.
Btw, it looks like they don't ship to the US.