$400 is a lot different than $550. Perhaps a few people that have added this product, would not mind sharing the price they paid (including shipment), along with the source they bought it from? For those looking for the benefits of the chip, a search can always be performed. But perhaps we can drill down to the best deal in the land on this thread, by sharing purchasing experiences. That would eliminate a lot of browsing through the forum to find out what others paid.