it's not 2010 anymore. My 6.8in QHD OLED phone, with literally the best screen in the world at that size, is faaar better than any ife system on any plane. Have fun watching a movie on a shitty 720 lcd panel.
Good for you, how many are in your position? Not many. Most prefer IFE. Including myself and I also have a nice phone. I use my phone for work on the plane and the IFE for entertainment. The whole BYOD has been movement in IT for over a decade with mixed results. And that is under a mostly controlled environment with company policy. Applying it to your customers is imo a foolish idea. It reeks of being cheap. Which works for ULCC crowd. Not one of the Big 3 trying to command a premium for their subpar product.
I'm gen z. I'd wager among my cohort it would be the majority. And it's not like AA doesn't have IFE, it's just streaming IFE which works perfectly fine. I recognize that among older generations that this attitude is not common. But tech advances at a much more rapid pace than anything mounted in a plane. Earlier people were bragging about hitachi tablets in the new DL a220s. Those are fine, but not amazing. And they'll be there for years, if not decades. What are they gonna do in a couple years when everyone is walking around with 120hz displays that makes 60fps displays something out of the dark ages? Try as hard as an airline can, they simply cannot match the pace of innovation in the consumer market. Mounted IFEs, in my opinion, are folly. I certainly agree that there are many things AA is doing wrong. No Mounted IFE is not one of them.
Displays at this point have reached the limits of the human eye. Humans have been tested and cannot perceive any difference beyond ~150fps. Even then the difference between 60fps and 150fps is pretty small since there are diminishing returns on the value of extra fps. You would really need to be focusing hard on a high-quality screen to notice the difference between 60fps and 150fps.
In terms of resultion, at a viewing distance of 18" the human eye can only perceive about 430 pixels per inch. This means that a 10" 4k display is at the limits of human perception from 18" of viewing. If you view from a bit further away - let's say 30" (more realistic for an airplane), then a 10" 1080P display is at the limit of human perception.
TL;DR is that displays are already at the limit of human perception. If airlines started installing screens now, they would not be "something out of the dark ages" within a few years. You would hardly be able to tell the difference.