Seems fairly reasonable to me. $70 for 2 priority international fedex shipments. Also I'm not sure, but shipping saliva may undergo more costs than your normal international shipments. The FAQ talks about certain customs forms that need to be filled in.

I went ahead and purchased. Been intrigued by the service for a while but found the costs prohibitive; hard to pass up an 80% discount, for me they've reduced the price down in to "impulse buy" territory.