I subscribe to the same adage, "black is not a color, it's a part-time job". That said, my first and second Corvettes are black. Black will also break your heart when most of the imperfections stand out in the bright sun.
While dust and particles in the air will deposit on any color paint just the same, black shows them. If you're planning for touchless washes, I suggest reconsidering; water spotting is nearly white and shown prominently on a black finish. High-end silica-based and polymer-based coatings will minimize the appearance of dirt, dust, grime, and other contaminants by providing a highly reflective layer so effective that the color itself is masked.
I'll say this, you might want to turn a blind eye on perfection. It's a daily driver and it'll be exposed to many "attacks" including people putting things on your car. If the car was something you've been looking for a long time and the deal is a good one, don't let paint color deter the purchase. Keep it clean as much as you can, avoid anything that introduce even more scratches and water spots, and, if you could afford it, have paint protection film installed.