So one shop prices them as a placeholder for $69.99/$59.99 and you think that will be gospel? Why not try looking around more, Amazon has 3DS games for pre-order starting at $34.99, with $39.99 being the highest priced.
This seems more like you trying to dig up hits on your blog than anything else, 1 shop over pricing their items is not any basis of fact for product pricing/MSRP.