For me, as a home buyer and not an operator, I don't really care about LCD unless its cheaper and/or more reliable. Granted I havent played WoZ yet, but while playing any machine I VERY rarely look up at the DMD especially on machines I know. I can't imagine looking up at the LCD on WoZ and having to process so much info at a glance. For a trapped ball, it's irrelevant how much info is shown because I can flip thru it. The only upgrade is to the animations - but you know what... for some reason I really like good DMD animations despite their grainyness.... like the Tron Light Cycle multiball intro is one of my faves and if it were the full color movie clip I don't think it would be as 'oh cool', its just another clip.
Maybe I'm wrong/crazy, but what I like about pinball is the feeling that you are MAKING the machine do things - Watching a great DMD animation or intro feels like I personally made it happen... watching live action clips or full rendered cutscenes I think will feel like I'm just triggering things. Kinda like how the old CD ROM games played - do XYZ and you watch a video... wooo. Despite the graphics and engine limitations, I think in-game cutscenes and live action events are much better on old consoles and PC games because you feel like you're part of the action rather than just triggering animation clips.
Once I play WoZ I'll know for sure.
If the LCD draws in paying customers, thats a different story altogether that I personally don't care too much about.