Replying to myself to add another data point: Other manufacturers manage to sell spare parts at more reasonable prices. I just checked a random washing machine

Replying to myself to add another data point: Other manufacturers manage to sell spare parts at more reasonable prices. I just checked a random washing machine from Siemens, and they sell the heating element for 28€. Not quite as affordable as the aftermarket part I got, and they'll probably charge 5-10€ for shipping, but it's a lot more reasonable than the Miele part.