I have a late 2013 iMac and went to the apple store to see how much does the resolution changes when i set it to scale the highest. In the Apple propaganda 5K is equal to 5120 x 2880, but when i scale it to maximum the real resolution is 3200 x 2010. So I was planning on buying the new 5K so I could take advantage of all the screen real estate, that is I thougth 5120 x 2880, but is does not go that far. I asked three Apple employees why they are selling 5120 x 2880 and when i set the maximun is only 3200 x 2010. Anyone know why is this? Because no one at Apple could answer me. Why its important because currently i am running my iMac late 2013 with two hd samsung monitors on a three monitor setup, and with the iMac 5K I thougth I would get more space so I could get rid of the two samsung monitors. It appears it is not so. So then, I need screen real estate, can someone explain why no one at Apple could answer me?