Well, it's pretty simple. Ed and Burt are treasure hunting gurus. According to word on the street, Ed found Drake's silver. Bottom line is that these guys have experience, and although Wilf is definitely an intelligent man, he is new to this industry. Bringing experts back into the picture is a HUGE sign that they really are onto something. It would be pointless to bring in experts if there were nothing for them to do (we're short on cash, I'm sure you noticed.. :) On top of that, Burt and Ed have been working on their own projects, which seem to be definitely worthwhile. Therefore, the fact that they would temporarily put their current projects on hold to jump back to DPBM speaks volumes.
Keeping my fingers crossed... even though I'm currently down about 50% of my investment (fortunately, made a good chunk of my losses back in the past 2-3 weeks).