[rufus_foreman]

I have similar information in a spreadsheet (that I am also turning into an app), and what it can help with long term is to put downturns in the market in perspective and keep you from overreacting to them.

When you look at a log chart of your net worth over several decades, things like the dot-com bubble and the Great Recession look like blips. It makes it easier to look at a bear market and think, "this too shall pass".

Of course it also helps you see your progress towards a goal and give you information on how long it will likely take to get there.