Demand matters more than a big number
A card can look valuable and still be hard to sell cleanly. Strong candidates usually have a real buyer base, recent comparable sales, and enough search demand that a properly built eBay listing can find the right audience.
Condition-sensitive cards benefit from care
Raw cards, older promos, and graded population pieces can swing heavily based on photos, title accuracy, defects, and buyer confidence. If the difference between a lazy listing and a careful listing is meaningful, consignment can earn its keep.
Your time has a cost
Listing one card means photos, title research, description notes, buyer messages, packing, shipping, tracking, and possible follow-up. For collectors who do not want to manage that process, outsourcing the sale can be cleaner than learning every marketplace detail from scratch.
When to skip consignment
If a card is low value, heavily damaged, easy to sell locally, or better grouped with related cards, individual consignment may not be the best fit. That does not mean the card is worthless. It means the sale format should match the expected return.