AMAZON网站上的书有几个价钱是什么意思?应该按哪个价钱购买?请高手指教.

(一)比如:
List Price: $35.00
Price: $31.50 & this item ships for FREE with Super Saver Shipping. Details
You Save: $3.50 (10%)
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Ships from and sold by Amazon.com. Gift-wrap available.

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7 new from $27.14 3 used from $22.05 1 collectible from $15.00

前面几行我知道是说原价35,现价格31.5,省了3.5元,但是后面说了什么,特别是最后一行有三个价钱是什么意思?

(二,)又比如:
Available from these sellers.

10 used from $18.93

Formats Amazon Price New from Used from
Expand Collapse Hardcover

Hardcover
Available from these sellers.
Publisher: harper & row, 1964
Published: 1964 -- $49.90 $1.56
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Expand Collapse Paperback

Paperback
Available from these sellers.
Publisher: Harper Colophon Books
Published: 1964 -- -- $0.70
Paperback, April 19, 2001

Paperback
Available from these sellers.
Publisher: Weidenfeld & Nicolson History
Published: April 19, 2001 -- -- $18.93
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Expand Collapse Unknown Binding

Unknown Binding
Available from these sellers. -- -- $0.80
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ExpandShow 5 more formats
ExpandShow 1 more format
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我应按哪个价钱付款?

(三)再问一个问题:国内哪个网站代购这些书是最便宜的?(不算书价)运费什么费总共要付多少钱?

1.按new的价钱。除非你喜欢二手书。再说二手书的卖家是个人，不一定能运到中国。
2，看你喜欢精装还是平装，hd精装pb平装。available from these sellers就代表亚马逊官网没有货，卖家是个人。个人一般无法运到中国。
3，没有便宜的 都是原价加运费你自己买单还要多给代购一笔钱。
书每本运费5美元 基础运费4美元。就是说你买2本，光运费就13美元。

支持一下感觉挺不错的