I've been wanting to own my own personal computer for quite a while now, and I recently inherited what I would consider a nice large clean desk so I have decided to get a desktop and if I end up needing to do stuff on the go that my smartphone can't handle then I will invest in a laptop later. But I've been saving for a mac and now I have more than enough to get myself a machine that will probably not ever be put to its full capacity by me in the near future. The 27 inch sounds so appealing to me because I will be watching movies in my room, and I will just have more space to browse and edit photos and videos etc. (I heard movies look pixelated on the 27 inch could someone explain that?) I'm thinking the 21.5 inch will would be fine but I have the money for the 27 inch. I like to buy quality equipment that will last me. I'm a sophomore in highschool, and if anyone wants to tell me I'm crazy for thinking about buying a computer as high end as the imac please keep it to yourself. I just want a machine that is excellent and will last me through highschool and later.