You don't add Finnish 24% VAT but the VAT of the country where the EU branch of the company is based - most likely Luxembourg with its 15% VAT rate. (All Amazon deliveries to the Eurozone come from Amazon EU SARL in Luxembourg, for instance).
Which means the fair price would be EUR 640, almost 10% lower.
VAT is based on the buyer's country for digital goods/services [1], and in other cases (such as this) if the sales exceed 100 000 EUR per year. [2][3] In some countries, like Finland, the limit is even lower at 35 000 EUR per year. [4] So if Oculus expects to sell more than 50 copies of the Rift to Finland, it will have to pay the Finnish VAT.
Which means the fair price would be EUR 640, almost 10% lower.