The same reason most people would keep any fish : because they like the fish. I breed convicts becaue their behavoir is fascinating and very interesting. Also, to get the next generation and choose the ones I like, usually out of ones that survive in the tank with out having to remove them as fry. If your breeding CA just to try and make a buck ---- Good luck!

Man, you'd definatley be keeping the wrong kind of fish.
I'm not a flavour of the month type of guy. Had many fishes that used to be "dream" fishes and most of them proved to be much less interesting then the convict cichlid. I don't keep fishes just to look pretty either ----if it's just to look pretty, might as well hang a pretty picture on the wall instead of a tank ,and be done with it ---- a lot less trouble. I don't keep fish just to try and impress others ; I keep them for my own sake. CA fish do not impress as well to most people as rift lake cichlids do. Especially if you want to impress non-aquarists, keep rift lake cichlids. I 've had many brightly colored salvini and red terror, yet when a non-aquarist sees my fish they always point to my token few mbuna and say: "Oh, is that one ever prettty. You should keep more fish like that one"