That choice is largely based on what he /she can and/or wants to afford.
Amen to that! I think it's really critical to think about one's needs and goals as a musician and to think about budget. Gosh, this applies to saxophones or kazoos, too.
Comparing keyboard models is useful to the extent that it helps a musician find the most appropriate instrument. Comparison for comparison's sake is fun, but unfortunately, social media all too often gets into unproductive or negative discussions.
Hey, hey, post, but don't forget to play today!
-- pj