If you want to just have fun with the game, it makes an income anyway.
If you want to stop throwing HIVE at it - just leave it alone, forget it for 3-4 weeks. When you come back, you will have a healthy savings of SIM, and you can let yourself go shopping.
I like to reinvest most of my sim back to the city to keep it growing, but I do let myself take out a trickly income. Its like a tiny little sustainable business.