Hi Lisa,
Well it it a matter of space. Displaying the real cards with their actual artwork would require a lot of space (otherwise you would not see much). The figures would also need to cover the art for readability.
The middleground I chose was to display art in the expeditions. At some point, I thought I would make the background move every time a card is played in an expedition. I am still not sure if this would look good. I may try some day. But as you guess, this is yet one or two days of work.
Thanks for taking the time to post. Very much appreciated.