hey everyone, so i am still in the market of purchasing an imac. From what i was told, the 21.5....you cannot upgrade memory. I was wondering if there is a way to actually bypass it. If this cannot happen, i guess i will just go with the 27 inch model but then again i feel like it would be pretty big since i feel 21.5 inch is just fine in the living room. I cannot see myself paying so much for the memory of letting apple upgrade my memory in the 21.5 when i can just do it myself if its possible.