I think the only market for these exorbitantly-priced NIB never-opened games is other collectors, who will never open them and let them sit in the box, then sell them for $10k more than they paid to another collector, who will never open them and let them sit in the box, then sell them...
It's disrespectful to pinball in general. I could be wrong, but I'm pretty sure pinball machines are built to be played.