People don't seem to gather that there are two kinds of "redesign". An external redesign, like the DS to DSLite, GBA to SP to Micro. Then, there are internal redesigns, like the PSP to Slim. Sure, on the outside there is very little difference. But thats not what the update is. The update is the increased battery life, faster loading times, TV out, etc. The external "update" is very small, just like the DS Lites internal "update" is small, with a slightly increased battery life and brighter screen.