I'm thinking of making the following changes and wanted to hear what you guys think: 1. 4S to 5: I definitely like the smaller screen on the 4S, but I'm excited at the prospect of changing to something new. Are the performance gains noticeable? 2. iPad 4 to Mini: iPad 4 is not too bad, but I do find it rather cumbersome when using it in bed. I initially bought it over the Mini because of color accuracy and processing power, but it turns out that I use f.lux on it so color accuracy is not that important. I mostly surf the Internet anyway so processing power is not that important. Also smaller form would probably be better to use in bed, ensuring that I use my iPad more. Not to mention selling the 4 would help pay for the 4S to 5 change. Is the difference in pixel density between the Mini and the 4 really that noticeable? How does the pixel density on the Mini compare to the Thunderbolt Display at normal viewing distance? 3. 15" rMBP to Air: Most hesitant about this change, but rMBP might be overpowered for me. I mostly use my machine with Thunderbolt Display for word processing and Internet based research (usually 50+ tabs open with Spotify, Reeder and other apps open). I do play Civ 5 and the Retina is superb for that, but I really shouldn't be gaming (I should be concentrating on grad school...). So... is the rMBP really that much more future proof than the Air? Screen considerations are not really that important because I mostly use it at my desk with the Thunderbolt Display. Selling the rMBP would also help pay for the 4S to 5 change. Help!