Two 2 X 10 Cabinets vs. One 4 X 10 Cabinet.

Sorry, I spaced out and posted this in the strings section. Now it is where it should be.
Does anybody out there use Two 2 X 10 cabs, instead of One 4 X 10? I was wondering if the sound of Two 2 X 10s would be comparable to the 4 X 10? Obviously I want to make a purchase of one or the other and it would be great to have some of y'alls input. It would certainly more versatile. Secondly, has anybody tried the Dr. Bass Cabs that are currently for sale on E-bay