Yea, silver is good at hiding. While silver may be boring - a silver WRX / STI makes up for it.
I'm an old guy with lots of activities and short on time. Plus old age takes some time for keeping health up too. So simplicity is important to me. That is a major reason silver appeals to me - can't afford to be a slave to anything.
One bad thing about silver / gray is it may blend your car into the road somewhat and not show up as good as red. Have to be on the defensive more while driving. But that was more so in the old days, before headlights were on at all times.
BTW, if you guys want simple living furniture go with natural or (close to it) oak. Hides defects, dust etc. Worst is smoked glass and dark cherry. Shows every speck of dust.