When photography was invented, there was only black and white. It would take years to have colour photos. Just after it came out, everybody was longing for coloured stills and black & white became oldfashioned.
Nowadays we have digital photogaphy with megapixel and all kind of possibilities in image editing. You buy the latest camera every two years, because you always want to get better image quality and sharpness. And then you convert the picture in Photoshop to black & white and add some corn to have a vintage look. Isn’t it strange? 😉
In some cases i really like black & white. For example in architecture- or streetphotography. When you leave out the colour, you can emphazise lines and structure or a statement. Sometimes colours can be distracting.
I have some black & white photos in my stock. But it isn’t my focal point. I don’t take a picture with the intention to have it black & white. I’d rather determine during the imaging that it works better without colour.