Art Nouveau ACEOs are a concentrated market. A handful of sellers own most of the listings, so the price you see is really their price. Breaking in takes a card that stands apart, not one that competes on volume. Right now 6 sellers are listing, 83.3% of them with a single card up. The top seller holds 44.4% of what is listed.

The middle of the market sits at $22.84. Most cards list between $12 and $50. Over the last 14 days the typical price has been climbing, from $12 to $22.84. Price inside that band unless you have a clear reason to sit above it: signed, numbered, or a name collectors already chase.

Almost nobody signs their cards here, so a signature is an easy way to stand apart. Most listings are Buy It Now, so your price and photos close the sale, not a bidding war.

You will not win this one on price. Win it on the card.