NEW YORK ( TheStreet) -- "Get over your aversion to tech stocks and start buying," Jim Cramer told viewers of his "Mad Money" TV show Monday. He said it's time now to invest in a once-in-a-lifetime product cycle in tech. Cramer said the endless skepticism surrounding tech stocks is moronic. He doesn't understand why investors aren't seeing the huge move towards mobile devices, like smart phones, that's clearly in bull market mode. He said despite countless strong earnings and fabulous fundamentals, investors are seemingly oblivious to just how good things are in the tech sector.