I'm at a loss as to how you could have more than in the past. I think Indy is just a slight exaggeration of some of the characters from the 1930s and before.
Maybe you're right; having just seen the Tut exhibit I had thoughts about Carter and Carnavon and American "Egyptmania" as I was posting. But it seems to me that there's much greater opportunity (and temptation) to generate media hype now than in years past, with movies, TV, DVDs, etc. I also believe that some of the academic dogma of the past is now being exposed and that's a good thing.