yeah JScott has some nice ones ( for his kid to play video games on at the shows
I guess it all comes down to what you expect to view with the screen. Like a movie or video, I would mount a nice size screen in the dash area. I am using mine for the cameras front and rear. I just needed to easily view it WHILE DRIVING. Being a rear view mirror it fit the bill very well! If I was to sit,PARKED, then yeah I would get a larger screen so I could watch it easier.
The flip down has the "wow" factor, but it stills depends on your viewing pleasure!
I have even heard of people buying an old video game console that has a screen in it and tearing it apart for just the screen.
Keep looking , you will find a nice set up that will work for ya!!