That $100 tablet has a screen that's unsuitable for games, with huge response time ("grey-to-grey") that smears moving images, high latency, and probably PWM or other annoying stuff. The non-Lite Switch has something like a minimum of 4.5 hours play time when the brightness is at maximum and the game is very demanding processing-wise, and more like 7 hours on average. According to Nintendo (it actually provides this info, which is suprirising), after about 800 charge cycles, the battery's charge capacity drops to about 80% of the initial charge capacity. That's pretty good, and probably much better than that $100 tablet's battery. And yes, no one really cares that it's 720p and not 1080p except nerds on the internet, because games just look good and you don't notice "teh pixelz". In fact, proper antialiasing at 720p is much better than worse antialiasing (or none) at 1080p, because "shimmering" and all kinds of aliasing-induced artifacts in moving images are even far more horrible than in still images.