I'd really like to see the Deckbox average price information in its own column, and the "buy one now" prices in a different columm. Having both prices in one column make it harder to read, especially when sorting by price.

Also, I'd love to see another advanced filter for price (cards within a price range). Often, when trading, I need to find a card of a specific price. Having that filter option would let my trading partner scan a list of cards that are of comparable value (I have one of those--interested?).