We price using Star City Games with no currency conversion. We will charge the price shown on SCG at time of pickup and purchase - the price shown on our site may not be the card's final price.
We use the SCG non-sale price. SCG sometimes holds card sales, but that doesn't affect our pricing - we still use the original, non-sale price.
We use the SCG mint / near-mint (M/NM) price as a baseline, then discount from there for grading. The SCG graded prices don't matter; only the M/NM price is used in-store. If a card is in rough shape, we discount according to the following scale:
Language doesn't matter. Except in rare cases, we price foreign language cards as though they were in English.
Autographs don't matter. As far as we're concerned, they neither raise nor lower the price of the card.