I am almost out of expensive watercolor paper and still hard to conclude if I am that fond of it, for ink, or I like better thinner, less grainy and cheaper brands. It is not about money. It is about being able to make thinner lines, easier to manage puddles and saving my brushes from their points being sanded off. It doesn't allowing me smaller details.
Even I went crazy on water brushes and some cheap Pentel brushes and got a whole bunch, it is still hard for me to trow out handful of abused and spoiled water brushes.