Colour photography is a technical discipline. It requires the ability to see with the camera (not through it!), and the scene balanced visually and aesthetically to appeal, then enunciate it from the lens and the film's point of view (especially challenging with high contrast, vivid palette film like the Velvias). B&W is one-dimensional and interpreted by tone with many, many variations in darkroom-based practice. Many people will master and stick with B&W, others will master colour only (such as myself) and rarely dabble in another type of film. I once used only B&W but got bored, even with darkroom production, and needed the challenge of colour, without which I felt very unfulfilled.
On the other hand, you can get an idea of the stuff the colour forum folk are rabbiting on about by paying a visit to the various undead Kodachrome threads. Seems nobody is going to allow it to rest in peace.