Sorry but 170 for a 1/10 scale individual piece, no way. That's crazy, I don't know what's going on the heads behind IS, they act more and more greedly, that's a real problem in brazilian culture, people want to win easy money, more that they can, I give you an example:
You know 1/10 Boba Fett IS launch? Well, the original price was $150, but the piece is out of stock and now there's people selling it for $300! For a 1/10 piece! That's make IS increasing even more the prices.