I collect movie lobby cards with baseball players in them. From my experiences most of them don't have a ton of value but of course have some. I think movie lobby cards, with no major significance, are probably in the $50 - $150 dollar range.
This one cost around $110 dollars 5 yrs ago. I don't really think most of them have gone up a lot in value However, ones with top tier baseball players might have since the cards have exploded., I have paid up to around 1700 for a very early Babe Ruth Lobby card...