I currently have these in my portfolio but even though that I am aware that I have 2 limit orders and I remember which movies they are, I have to constantly go back between each movie page (or my portfolio page) and the limit order page to check their current price and evaluate if these limit orders still makes sense. Multiply that by the number of movies that a user have with a limit order and for someone (not me since I only have 2) must become really troublesome. An extra value in that line just avoid all that clicking. The way I see it, whenever either increases or decreases in prices happened quickly your limit order is execute fast and you fullfilled your objective in a timely manner but when these changes in prices happens a lot slower the user (assuming still remembers it has a limit order for a movie) is constantly forced to either cancel the order or evaluate his previous assumptions and for that he/she will need at least the current price.
By example above I just say that when this 2 cX derivatives (valued under adjust price of their respectives openers movies) reached their movies adjust price (number that has its meaning) then sell but unfortunally for me while these cx derivatives are moving up to that number, they are taking their time to do so. So every day I check the daily difference to get a sense of speed and their actual price but I have to navigate my way to remember what target price I set as a limit to see if that still possible. In this case odds are that before the derivatives (or whatever) reach their target price they either will be delisted or will I will do something else but my decicion will always use the actual price of the stock and that is the only information I don't have in the limit order section. The daily change is just for having a sense of speed.