I have the neoprene socks, warm neck, and the Kevlar knee pads for the reason Stuart pointed out. Didn’t see the need for more reinforcements and don’t miss it so far. I use a hanger with a computer fan on it, so drying goes really quick without the need to turn things “inside out”.
I have had 2 suits in the past with attached boots. I have an Underwater Kinetics suit dryer hanger. It has a fan in the middle of the hanger that blows down into the suit. It is GREAT for drying out my wetsuits. But, when I have gotten water inside my drysuit boots, I have not found any way to use that fan/hanger to get the boots dried out in less than a few days. There is no outlet from the boots, so air doesn't really circulate through them. The fan/hanger dries out the rest of the inside of the my drysuit just fine, but I found it almost useless for the inside of the boots.
I finally bought a set of boot dryer inserts that you would use on any ordinary shoes or boots. They get a little warm and have small fans. They will dry out drysuit boots overnight (or close to it). But, those boot dryers are not something I'd want to try and take with me on a trip.
Of course, one simple solution to this would be "don't flood your boots".... Drying them out from just the normal dampness of sweat and condensation is no big deal.
I really only flooded mine twice. Once, in my drysuit training, when my instructor required a partial suit flood as the last pool exercise, so that was on purpose. And once, when I hit my leg on something sharp inside a wreck and got a very small hole in my suit. So, maybe I'm making a bigger deal out of "drying the inside of the boots" than is REALLY warranted. Obviously, they should not get flooded very often. But I still prefer socks on the suit...