I'm wondering about my next workhorse machine. I can't afford to have desktop and laptop anymore but mobile chips have gone up in performance in couple of past years so I'm thinking I'll go with MBP again (currently using MP & MBP 15" from 2009). One thing bothering me is screen real estate. In the end I'll probably be using it with external display as well but I'm getting tired of 1400x900 on my MBP and I know I could definitely use more space. From what I understand I can use scaled resolution on both 13" and 15" and up to 1680x1050 and 1920x1200. Is anyone using these scaled resolutions? If so, how does it look? Are there any GPU artifacts? I don't really mind using smaller UI elements but in apps with lot of windows I can really appreciate more space.