Cards are light, flat and cheap to send, which makes this the category where delivery pricing can quietly cost you money in a different way: by being too high.
The four options
Courier — the default, and almost always right. Your own delivery — unnecessary for a sleeve of cards unless you are already local. Pickup — fine, and rarely the point. Buyer arranges — occasionally, for a very valuable slab.
What decides it
A single card in a rigid mailer weighs almost nothing. A weight-based rate with a sensible first slab is the right rule here, and a flat rate set for heavier categories will make your cards look expensive to buy. How delivery is charged.
Think about the floor, not the ceiling: if your cheapest delivery costs more than a common card, nobody bids on common cards.
Combining wins
This is the category combining was made for. Twenty cards from one show go in one parcel at almost the same cost as one. Combining is on by default and you set what each later win adds — for cards, keeping that small is usually what makes the night work.
Say it out loud in the show. "Everything you win tonight ships together" changes bidding behaviour immediately.
When collection is the honest answer
Rarely. For a high-value graded card where both sides would rather not involve a van, pickup is reasonable — agreed before bidding, with a collect-by window. How pickup works.
Questions people ask
Should slabs ship differently?
Same service, more packing. A slab needs a box rather than a mailer. Packing cards.
Is free delivery worth offering above a value?
It works well here, because the cost is small and the effect on bidding is not.
What dispatch window?
Whatever you can keep through a busy week.
More: setting up delivery, selling cards.