I'm sure that's the econ 101 answer for healthy, theoretical free markets. In reality, we have market consolidation leading to near monopolies, collusion/price fixing between what few companies remain, etc. Refusing to purchase works for some things maybe, not so much for basic household goods and groceries, an area where a small handful of companies control the overwhelming majority of the market. Allowing survellience pricing just gives these conglomerates more leverage over consumers.