Why Does Amazon Do This?

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Gee, I wonder why my Glass Bridge sales are so anemic. Could it have anything to do with the prices which amazon.com lists for the paperback? Here they are, as posted:

*$1,993.62 (62 cents? eh?)

*2 used from $1,497.71 (what?)

*1 new from $1,993.62

Why is amazon doing this to my book, which never did them any harm? What kind of loon is going to pay those prices? What disturbed mind did those prices come from?

It may be that one of you out there knows why this happens. It can’t be doing my book any good! If you know, please let me in on it. Meanwhile, I’ll see if there’s any way I can get an answer from amazon.