I used
ebooksearchr to find the following e-book versions of crooked little vein:
ereader.com: $17.95
ebooks.palm.com: $17.95
mobipocket.com: $17.95
powells.com (MS,Palm,Adobe): $15.26
ereader and ebooks indicate that the list price is $21.95, mobipocket does not say, and powells indicates that the list price is $17.95.
The list price for the hardback is $21.95, but on-line retailers (e.g. Amazon) give heavier discounts than e-book sites. In fact, if most e-books sites are just "platforms" for publishers then none of them will give discounts. This is a problem because the list price of the hardback is much higher than its typical selling price, but the list hardback price is what is controlling the e-book price.