Well, to put it in perspective, unless your hobby is shooting table tennis competitions in candle lit rooms the noise issue wont affect your everyday photos, taken in daylight at low ISO's you'll still get fine, crisp pictures. Your not losing out on the other issues, your just not getting as much as the marketeers would like you to think. It's at occasions like weddings etc where you would like to get photos in dim lighting as unobtrusively as possible that the noise issue creeps in as you up the ISO speed, or if you do a lot of fiddling in photoshop.