I know most of us here on xda hate overlays like Sense and Touch-Wiz. You have to understand the business standpoint though. Manufacturers need something to set them apart and make them recognizable to the consumer. When someone sees Sense, they think HTC, Touch-Wiz, Samsung. Us tech-savy users know the other, cleaner, faster side to android. Normal consumers just see nice graphics which seems to make the sale.