That's like asking me to own three cars.
That's like asking me to own three cars.
A black suit is good for formal use. Church-business, meetings with executives etc. You're conveying the message that you're dead-serious. A charcoal suit works well, also, as mentioned in another comment.
A lighter suit, maybe grey with a very light pattern, no color, goes well for anything non-dead-serious. The message is that you respect and take whomever you're with seriously. Lower level meetings, fancy restaurants, conferences. A black suit don't go well here, because the situation just isn't dead serious.
The third suit is for when you're used to wearing suits and like it (if you don't like it, don't go there) - something more playful, something like a color pin-stripe is popular. Generally not for business-use, but for going out. If you show up at a post-conference cocktail reception in a suit like that it says "let's enjoy ourselves" and shows another side of you.
1) you don't want to look dead-serious. Most people like business interactions to be relaxed.
2) most formal matters are conducted in the daytime. Daytime environments--outdoors, fluorescently lit offices, places with the windows open--will be brightly lit and comparatively low contrast. In these environments, black sticks out a mile away. There's a reason black tie is only considered appropriate during the evening, when street lights are on and interiors tend to use more relaxed lighting.
3) there is a rule in America that black suits are only appropriate for very somber occasions. Not everyone knows this rule, but some do.
4) cheap black fabric stands out a mile away. Cheap fabric of any color, not so much.
Get a dark ("charcoal") gray suit instead of a black one. Charcoal gray is the world's most boring color, making it perfect for interviews, presentations, important business, etc.
Of course, you outsource the impressing one to whichever social building is appropriate for the event and outsource the working one to your office, but still.
Maybe you could have a daily driver, and either hire a van as needed, and have a weekend car or hire one as needed, or own or hire both or indeed all three.
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