I'm a big fan of tones sometimes heard from older Boogies - those fat, singing notes dripping with a ton of smooth, creamy mids and a whole lot of gain. Am I in need of a Mark IIc+ per se in order to get closest to those types of tones, or are there alternative Mesa Mark models which aren't currently fetching $3k? What are the specific differences between the highly-coveted IIc+ and the more moderately-priced IIa or IIb (or, for that matter, the Mark I)? While on the subject, how close might a Studio .22 Plus or DC-3 get me to what I want? In short, is the IIc+ mostly just hype, does it have a perfect storm of features and build-traits, or is it some combination thereof?