You can get cash from POTD? I haven't noticed if it gives you it passively...
you get Bags when you find a piece of the Hoard In POTD which you can open at the NPC in Quary mill
Gear ,Materia 5 etc some of which where extremely expensive when it just came out .
A few runs trough and a bit of luck with RNGesus and you could make millions .
even now while the markets crashed a bit it is still very lucrative