Re: What gives this legend it's "pizzazz"?
To the original question from my amigo themarkd;
What gives this legend it's 'pizzazz'?
I see nothing posted to disagree with, and only would add that Hollywood has played a
major part in popularizing this legend in modern times. Prior to Waltz's death, the legend did not even exist, there was some rumor of a rich gold mine and that was it. Nationally the most well known lost mine was Pegleg's black gold nuggets, with the Lost Adams running a close second. The Doc Thorne mine story was known well within Arizona, but scarcely mentioned nationally. Then after Waltz's death, the story got out; for several decades no books were written but Pierpont Bicknell popularized the story in his newspaper articles, and these were for some time the only publicly available info. It would make an interesting study to examine how this legend grew from an obscure old German immigrant miner/prospector into world wide fame, today perhaps the best known lost mine legend in the world.
John D. Mitchell published an article on the story before Sims Ely published the first true book focused solely on the Lost Dutchman; but Barry Storm's somewhat thin book Trail of the Lost Dutchman first really increased the interest. Several of the early Dutch-hunters remarked on how many new searchers appeared in the Superstitions shortly after that book came out, and every single one of them had a folded up copy of the 'Trail' in a hip pocket.
Hollywood certainly played a major part in making this story popular with the movie Lust for Gold, based on Barry Storm's book Thunder God's Gold; however Storm was very unhappy with the way the Hollywood producers played loose with dramatic license, having Storm claim to be Waltz's grandson for example when he never made any such claim. In recent years, television got into the act with several different programs focused on the LDM; episodes of "In Search Of", "Treasure", "A&E" and the History Channel all did specials and reaching a very wide audience. The Lost Adams by comparison also had a movie done on the story, "MacKenna's Gold" which did not generate nearly so much public interest.
The Lost Dutchman gold mine also must be the most "found" lost mine of all; at last count well over 100 different claimants have all stated they have found the mine, with a dramatic difference between those of the early days and those of modern years - those of the early decades of the legend had, in almost every case, indeed found a gold or silver mine that was in fact rich, though none of them were apparently the actual mine of Waltz; while in modern years almost all of those who claimed to have found the mine have no gold to show for it.
This could be an interesting discussion, thank you for starting it amigo!

Oroblanco
PS - the Hollywood aspects were covered in an older thread here, Cubfan listed some of the television appearances
1) A&E 1998 The Lost Dutchman Mine
2) In Search of The Lost Dutchman Mine (parts 1, 2 & 3) <edit, 1977>
3) The Lost Dutchman Mine - 1973 16mm film documentary
4) World of Treasure - Lost Dutchman Mine
5) Various short video clips
This site has a fairly good collection of the 'core works' on the LDM:
http://www.lost-dutchman.com/dutchman/dutch.shtml
Two of the most popular sources are now something of a collector's item, Sims Ely and Barry Storm's first book; also while I do not disagree with what Cactusjumper said about Helen Corbin's 'Bible' for trusting any of the "new" information; I still find the book was an excellent read, certainly no worse than some others that have long been in circulation with no one even attempting to set the record straight, for example "Killer Mountains" by Curt Gentry. Bob Corbin should be praised for his efforts to remove the book on the grounds of the false info which came from a well trusted source, but the book is still an excellent read. So if you have a chance to read it, and keep in mind that an expert forger and liar had interwoven many falsehoods in the sources, it is well worth your time in my opinion. I do not reject it out of hand and it still has value as literature if not as a reference book.