I moved recently into a bigger place which allowed me to set up a man cave in the basement. Men, with their man caves, all have different ideas on what they want it to look like. Some look at their card collections as decoration in a more socially livable room. Between the wall displays of cards and jerseys, there are couches. bars, video game and television set ups and some even have exercise equipment.
Myself I have forgone this type of man cave and concentrated all the space toward card collecting, trading and displaying. The walls are used for display of cards and magazines, with a concentration on displaying current collecting endeavors. Presently that is 1952 Bowman Baseball, and One quality card for each member of the Baseball Hall of Fame.
I have my desk and laptop in one corner leaving the center of the room for an island dedicated to tradable cards. No more rooting through stacks of 5000 ct. boxes, they now are all open and side-by-side for east rummaging. This saves so much time when putting together trades for shipping.
The rest of the space is for shelving binders full of card sets, factory sets, boxes and other miscellany. All in all the space allows organization, it is very functional. As to its ascetic appeal. I will leave it up to the reader to decide.