$150 at 13.23 per $ is R1984.50, add in VAT at 15.4% (14% on 110% of value), you get get almost R2300. So I am not sure why you expected it to be so much lower taking in to account the oversea price, the exchange rate and our tax law.
Still it is quite a bit over R2300 so I wouldn't not exactly call it a bargain.