I make both M&P and CP.... Honestly with M&P you can add fresh herbs and use essential oils that you can't in CP soaps, what I mean is, in M&P soaps you are less likely to loose the actual 'healing' benefits of the essential oil than in CP because of the amount of heat CP soap will generate..... and when you add flowers or herbs to CP soap a lot of time they turn into black or dark spots rather than looking like a rose or lavender.... Also, I like M&P for novelty soaps for b0day parties and as gifts and such..... People like both, I don't think it's 'bad for business' to make M&P soaps......
I actually see a lot of little shops building their business on M&P soaps. So hang in there, there is a market. Just keep creating your soaps!