Right you are Bob!!! Place an ad in the marketplace and see what happens! I know of a few people that did this and I was shocked to see what the response was!
One example: I know of someone who put in an ad to purchase a New Point Loma last year and got responses from a few people that were over $100 less than the going price! I couldn't believe it!
if you bought recently from a place like e-bay, sometimes contacting the vendor you bought from reveals goldmines. I bought HL102, and in closing the transaction, I e-mailed the vendor for information and was able to get 10 more pieces at a great price.