What makes me a winner? Can't you think at all? If I could sell my home at a price ABOVE the zestimate I would be a winner. You have this obsession about what you THINK your home should be worth. If you want to find out, list it, and see what kind of offers you get. Then you'll know what your home is REALLY worth.
The zestimate has NO IMPACT on what a home sells for. None. Zero. Nada. Zilch. Just like random Yahoo market headlines have NO IMPACT on what the stock market will do.
Markets will perform as supply and demand dictates, whether stock or real estate.
I own two homes. One is definitely worth LESS than the zestimate, the other is PROBABLY worth less than the zestimate. Some people have an inflated idea of what their home is worth. But unless you plan to sell or refinance, it doesn't really matter what ANYBODY estimates the value of your home to be. All that matters is what it will sell for. If you think that an on-line estimate, or even a city appraisal, has a substantial effect on the value of a home, then you don't know much about real estate.