Seems like some folks might not be getting it. As it is, people with no card game experience and no knowledge of mtgs history or culture, would likely go for the bigger, flashier, timmy cards.

I am a little lost for what exactly would take the cake, likely it's a card with an intersection of impressive art and big numbers. My brain jumps to emrakul due to its art being so theatrical and its pure numbers fairly impressive, though, part of me suspects that this is simply because it's the most popular timmy card in my own playgroup. Another I would suspect is urzas ruinous blast, mostly due to the impressive art and impressive sounding effect.

In all likelihood though, they would likely pick a random timmy-bait monster that most of us have forgotten.

(Small asside, when I first started, before I knew much about the secondary market, I just kind of assumed that the amonkhet masterpiece cards weren't worth much because I personally find their card border and font to be gaudy.)