I was just at zzounds.com looking at the prices of their cards, and both the Gina 20-bit card and the Darla 24-bit card are the same price! Both come with the breakout box and cable. Could someone tell me why anyone in their right mind wouldn\'t buy the Darla, since it does 24-bit recording? Is there something I don\'t know? Aren\'t they otherwise the same card?