If you put money in storage, slowly it will fill up and at one point you will say, wow omg i got a nice bunch of money and maybe also some good + or blue items that you stored and can now stall.
For example i make about 100k with every grind i finish (with new pots, new horse, pills and repair)

. Except from that i also get some good drops from time to time and can stall them for 200k+

.