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At reasonable levels & typical returns, it absolutely is favorable, particularly if the rest of the tax structure enables your company to pay you enough to cover the tax or if can borrow at a good rate...
But tech is weird; valuations & failure rates are simultaneously MASSIVE. To take an extreme example, if you owned a 5% stake in Theranos at its peak, you'd be paying $15M/year for it, and of course it would've turned out all that wealth was entirely illusory anyway.
