Raisin, I don't often wear suits because I until the other day I didn't own a suit!!
I WOULD often wear a suit for my appearances. It's pretty much exactly what I need. I now have one (in taupe, soon to be modelled). But navy is my other main neutral. And they could be mixed and matched because the styles are quite different.
I would also (happily) wear a suit for going out to dinner with Mr. Suz. He completely understands my androgynous style gene and would not bat an eyelash if I chose that over a dress.
I would wear a suit when I travel -- theatre, dinner, galleries, and the like.
I would wear a suit when I attend business meetings in the city. Rare -- and absolutely not required -- but again -- a suit for me is probably like sweatpants for some other people. It's my "happy clothing."
Having said that, I would NOT wear a suit for my work-at-home life. I tend to wear jeans and knits in winter for that role, and shorts plus woven tops in summer. So it's not an item or combination that would get daily or even weekly wear in my life.
On the other hand, when I needed it, it would be there. Know what I mean? And I would certainly wear the pieces broken up. Navy pants with a sweater or a casual jacket? That's a no brainer.