"I am Danmaku Miko Girl... and this is my weapon. She weighs one hundred kilograms and fires twenty-thousand yen, custom-forged needles at ten thousand needles per minute. It costs forty million yen (or four thousand Mikos in old bank notes) to fire this weapon... for twelve seconds.

...

Some people think they can outsmart me. Maybe, [sniff] maybe. I've yet to meet one that can outsmart needle."

So that's why Reimu is perpetually poor.

And that's why Recette is so rich.