Quoted from SuperPinball:
I suppose it could apply to the bottom 25 as well but you need to compare apples to apples in other words, NIB to a similar condition one. I remember Xenon NIB was $1500 in 1980, but a nicely restored one is over $2500, same applies to Black Knight. NIB in mid 80's were $1800. Please provide evidence of your statement that a "minty" condition machine is less than its NIB counterpart in more than 5% of the cases. At the very least, you will not "save plenty" as stated in the original dumb post quote.
Do you understand what inflation is?
$1500 in 1980 is equivalent to $4300 now.
You know there are about 5,000 other pinball machine titles that are not "top 25" games, right?