Paying TSMC to fab chips is going to cost more than producing chips in their own fabs, reducing Intel's profit margin the more they do so. TSMC also knows full

Paying TSMC to fab chips is going to cost more than producing chips in their own fabs, reducing Intel's profit margin the more they do so. TSMC also knows full well that Intel will switch back to their own fabs the instant it's practical for them to do so, making them a less reliable long term customer than Apple, AMD, etc. and so won't be inclined to give them priority or much of a break on pricing.