I also don't go to the Guggenheim to admire the cabinetry holding the articles on display.
I'm not saying anything bad about Bob's humidors. I'm sure they're well built. All I'm saying is that I think there's an element of economy when MDF is used and I'm just not buying what I consider the marketing strategy of saying it's engineered for the application.
MDF has only been on the market since maybe the 80s...Why was it created? Because people were having little success building humidors and museum display cases prior out of solid wood or veneered wood?
Your cynicism is showing. I would politely suggest you do a little more research into MDF. For folks that understand woodworking, it's often the preferred material in high humidity environments for dimensional stability. You know, so the door shuts and seals for a long time...?? As Gary pointed out, MDF isn't like the cheap particle board that is used in cheap imported furniture. You are saying bad things about Bob's humidors when you dismiss his choice of materials as "marketing". You are making the assumption that the high density MDF that's used by him is somehow cheaper than solid wood. Depending on the solid wood, that may or may not be true.
You should give Bob a call and chat with him about why he uses what he does. If you knew the technical background that he comes from, and if you actually took the time to get some facts, you might be surprised. That is, if you really want to understand the issues here.
Cynicism started on post 12 and was really more "skeptical."
He uses solid wood for the doors & lids, if that indicates anything.
Follow me here. MDF is a manufactured man-made material. In contrast, solid wood is natural and must be prepared prior to joinery and finishing.
For example, if you have a 12" deep humidor carcass, made of wild cherry, you must rip a 12" piece, or join 2 6" pieces to release any inherent instability in the wood. MDF, you could just use a 12" piece. Cost savings.
For example, in order to rip or prepare your piece(s) of cherry, you must joiner the edges, and biscuit / tongue-groove them together. MDF, you just use a 12" piece. Cost savings.
For example, in order to get a nominal carcass thickness of 3/4", you need to plane your joined / jointed cherry. MDF, you just use a 3/4" piece. Cost savings
After all that, you're about at square one to construct your carcass for either example. Granted the MDF still requires veneer for a "pretty" look where the solid wood doesn't, but then again, you don't necessarily have to stain / finish the veneer, so let's just call the finishing process a wash (although I didn't mention the umpteen levels of sanding to get your solid wood there. So probably cost savings.)
My point is, the main reason for using MDF is economy in materials / preparation. The joinery if good, either example should be pretty much equal. Dimensional stability of MDF is a by-product. Spinning dimensional stability as the main reason for use is marketing, just like making it ambiguous as to what your construction methods are on the main page of a website. Maybe to dispel the stigma MDF has to particleboard??? possible, but another marketing technique nonetheless.
Sitting side by side, crafted by an accomplished wood worker, both examples should perform equally well and look wonderful.
IMHO, I prefer the solid wood version, drawn from a piece of nature, by a master carpenter.