The issues with kara was not the instance itself but the number of people it let in. you can gear 10 people. 10 + 10 =20, 10+10+10=30 . there is no way to run kara to gear a raid and not have people left out and feeling jilted when you hit the next level of content at 25 man's. people get sick of being benched and go find a guild who will take them and their friends go with and your back in kara re gearing people all over. it started a pattern of guild implosions until the severs average gear level got up to the 25 mans. all I'm saying is EVEN FRIGGEN NUMBERS. its not complicated.