Consider this lot of 24 Nancy Drew books with dust jackets.
24 Nancy Drew Mystery Stories Most w Dustjackets
The books have the wartime conditions notice, so they are from the 1940s. The lot sold for $243.46 in an auction.
Now take a look at this lot.
Lot of 23 Nancy Drew Hard Cover Books 1930s to 1950s
This lot closed at only $66 in an auction, yet eight of the books have dust jackets.
Compare both of the auction listings to the following two Buy It Now lots.
NANCY DREW Collection of 26 Vintage Books - Nice Set
This lot sold for $200 in a Buy It Now. The books are from the 1950s and do not have dust jackets.
Here is another set of all tweed books without jackets.
Nancy Drew 24 piece Mystery Thriller Book Set
This lot sold for $195 in a Buy It Now.
I have long held the belief that some people value the books which do not have dust jackets more than they value the books with dust jackets. I have never understood this manner of thinking, yet time and time again I see closed listings which seem to support this theory.
The first lot which had all books with dust jackets from the 1940s sold at around $10 per book. The second lot which had some books with dust jackets sold at less than $3 per book.
Both of the lots which had all bare books with no dust jackets sold at around $8 per book. This average price per book was much higher than one of the lots which had some dust jackets and only slightly less than the lot that had desirable dust jackets from the 1940s. The jackets from the 1940s are generally worth $20 or more apiece.
The bare books without dust jackets from the 1950s are supposed to be worth around $5 each, yet the books often sell for significantly higher prices.
It is also important to note that the two listings with lower prices were auctions, and the listings with higher prices were Buy It Now listings.
We can draw several conclusions. The first conclusion, as already stated above, is that some people prefer books without jackets and will pay significantly more for a bunch of blue Nancy Drew books without dust jackets.
The second conclusion is that eBay auctions often result in prices that are well below value. I'm not sure how many buyers are aware that many of the people selling series books on eBay at high prices bought 90% or more of their books in recent eBay auctions, usually using a secondary buying ID.
Finally, people are likely to impulse buy books at higher prices when they see a large lot of books in a Buy It Now.