While you're certainly entitled to your opinion, I was one of the test drivers for Powerboat in Parker AZ when we ran both the DCB and the Eliminator. (please note weight difference which should answer the speed difference between the two brands) The speeds reported are accurate. Test team 1 included Bob Teaque and Matt Trulio. Test team 2 for this series of tests, was me and Gregg Mansfield. We independently run each boat thru the same tests, and then independent of either Bob or myself, the staff compares our results. In so doing they do their very best to report the real world results. As to prices quotes, those come from the manufacturers on the info form they give to Powerboat at the performance trials.
I will stake my reputation on the objective results you see in Powerboat Magazine.
As an aside, the Eliminator did have a very high X dimension and certainly took a bit of effort to get on plane. Now, as to that DCB that can run 150 but you kick it's butt all the time: How about this: We each put up $100,000, I convince Bob Teague to join me in the DCB you mentioned and you drive your boat, we'll race 2 miles or so wherever you like, and the winnner takes the combined $200,000 purse, $100,000 of which will go to the Red Cross hurricane relief efforts.