Skip to Content
eBay Hacks, 2nd Edition
book

eBay Hacks, 2nd Edition

by David A. Karp
June 2005
Beginner
463 pages
14h 19m
English
O'Reilly Media, Inc.
Content preview from eBay Hacks, 2nd Edition

To Bundle or Not to Bundle

Determine simply how and when to bundle items for sale.

One of the most common mistakes sellers make on eBay is selling too many things together as a lot. Sure, it’s easier to list fewer auctions, but bundles are usually worth much less than the same items sold separately, and may even be less likely to sell.

One of my favorite eBay anecdotes involves a single auction for a large lot of model trains, for which I paid approximately $800. I then turned around and sold about half the collection, all told, for about $800. I estimated the value of the remaining items to be about $1,000, all of which I effectively got for free. (This is similar in concept to arbitrage, but relies more on skill than on simply taking advantage of inefficiencies in the marketplace.)

Obviously, the original seller of the collection would’ve earned quite a bit more money had he listed each item separately. But how could he have known?

The most direct approach is to compare the expected value of a collection with the total expected values of the separate items [Hack #42] . But this can take a lot of time, and you’ll be hard-pressed to find another auction with exactly the same items.

So instead, just ask yourself this question: “How likely is it that any single bidder will want all of the items I’m selling?”

Bidders who buy large collections or lots typically do so with the intention of reselling some or all of the items. Since they’d only do this if there were profit in it, it’s unlikely ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Mark W.
Embedded Software Engineer

You might also like

eBay Hacks

eBay Hacks

David A. Karp

Publisher Resources

ISBN: 059610068XErrata Page