Are you sure it's the same model? Tokai do a number of different price point guitars, all jap builds though.
That's true, just looking at the UK site they have the SG35 and SG50 (both Korean, or are they Chinese now?) in the budget range, then the Japanese SG85, SGP90, SG100, and SG175.
The UK prices are high though! I had an SG-75, which is the equivalent of the SG85, cost me a little under £500 and they're listing it for £780. And I have an SG-155 (now SG175) which cost me nearly £900 from Japan and they're listing it for £1,375!! :o
:idea: Maybe I should sell the SG-155... the problem is, people don't appreciate the model differences so I'd be lucky to get £500 for it.