Hi Toofuzzy, Forget Amazon. Smart people do and they go to Alibris or Powell's Books. I bought my collection of all of his books on Alibris for $0.99 to $3.95, plus shipping, including another copy of the 2002 edition that is currently being sold for over $50. Sometimes you have to wait a bit for more to come on the market. However, had you bought a bunch of the 4th edition and held onto them until now and sold them for $54.95 you would have made 14.75%/year had you paid retail. Had you paid the normal bookstore wholesale price of $4.20, you'd have made 18.69%/year. This is without whatever you'd have to pay Alibris or Amazon for using their web site.
The only problem is knowing when the current value is going to be up or down from the price back then. Sounds a lot like trading stocks.
Best,
Allen
