It would be nice to know the stub value of all my cards combined in my inventory. Part of me is tempted to sell all of them to buy most of the big live series guys and then work backwards in attempting to get Mantle.
Sometimes I just add up the market value of all of my sellable assets just because I like knowing where I'm at, it's nice to know how many stubs I can get at a moments notice if I really need to.
I check my four invested cards daily. Currently if I sell and add current stubs I have about 225K. Makes me sad that I did waste about the same amount on silly stuff.