Yea, but the fans help cut down on the weight so much and when they're implemented well, you never hear them. IE the Cinepro came stock with fans as quiet or quieter than the Crown I used to have, albeit it doubles down and uses passive and active cooling. With the fan mod, the Crest is damn near dead silent. The only reason it isn't more quiet is because it uses the two regular fans and a smaller, what-can-only-be-described-as-a-mini-turbine type of fan. I still like active cooling, moreso because it gives me mini projects to do and simple-ish problems to solve while I wait for glue to dry.
I happen to love your cabinet design and the fact that it pulls through to a room behind so everything is accessible. Someday I'd like to do a little bit of a cross between what you have and what Dr. Mark has in his theater room as far as racks/cabinets go. For now I'm stuck with freestanding racks and trying to keep my spare bedroom under 100 degrees. Hey, but at least its quiet now.....relatively speaking