Comics post easily and stack up fast, so the delivery decision is really about how many are going at once.
The four options
Courier — the default for singles and small runs. Your own delivery — good locally for big boxes. Pickup — the right answer for long runs and bulk. Buyer arranges — for very large collections.
What decides it
Count. One comic is a flat, light parcel. Forty is a heavy box that costs real money and needs a strong carton. A weight rule handles both honestly; a flat rate will either overcharge the single or lose you money on the box.
Whatever the count, the parcel needs a moisture barrier. Packing comics.
Combining wins
Comics are ideal for it. Several wins from one show go into one box, and combining is on by default with whatever you set for each later win.
The thing to watch is the weight tipping point — twenty comics is a different parcel from five. Weigh the packed box before you quote a combined rate, because the difference comes off your balance.
When collection is the honest answer
For a long run or a full box, often. It is heavy, it is awkward, and collection keeps the price sensible for both sides. Pickup terms are agreed before bidding, with a collect-by window — 72 hours unless you set otherwise. How pickup works.
Questions people ask
Should I offer free delivery over a value?
It works for single higher-grade books. It does not work for boxes.
What dispatch window suits comics?
Either, as long as you can pack properly inside it. Rushed packing is worse than a slower window.
Does a graded slab change anything?
It needs a box rather than boards, and it is heavier. Weigh it.
More: setting up delivery, selling comics.