Nobody NEEDS six guns. /s
For goodness sakes, there are, after all, seven days in the week, and then there is the nighttime engagements, and the noon luncheons, and the breakfast eye-openers, then the workwear, and the golfing attire, the list goes on and on, not to mention something for wearing around the house. Then you must have for the guests...
A person isn’t even dressed right with only 6 - you’d have to wear the same one at least once during the week!