Okay.
Personally, portability is meaningless to me. If I'm at home and want to play videogames then I want the best and most comfortable experience I can get. If I'm away from home then most likely I'm going to be doing something and won't have the time for focus to play games. Besides that, I hate even carrying a smartphone around, much less something even bigger and more cumbersome. For me, the increased costs coupled with other sacrifices related to a portable system are a definite negative.