As you know, Dlux has been sold, so the recent problems he had with the manufacturers will hopefully be sorted by the new owners.
The XR10 needed a lot of money spent on upgraded gears/gearboxes etc to be competitive, the Berg even more so, and the Bully 2 has weak front CVDs that need upgrading to UJs, plus comes with the most useless shocks on the planet, and a weak point in the small bearing. So, if you were to compete, the best crawler you can buy without added expense is the Dlux. Budget wise, and just starting out, the Bully 2 with front UJs, knuckle weights, better shocks, a set of better bearings and it's a good crawler.
turok007 has already said he wouldn't use his scale truck for crawling, and wouldn't mind trying MOA, so I'm guessing he knows the type of truck he wants, and what he wants to use it for.
Personally, if I wanted to try a comp crawler, I'd put a wanted out on Facebook pages and forums for a used Bully 2, hopped up XR10 etc