Why are older generation processors sold more expensive than more modern ones?

Question

Processors

For example, Intel Xeon X5677 from 69,300 rubles and Intel Xeon E3-1240V3 from 20,586 rubles to the Yandex market. Specifications are comparable ark.intel.com/ru/compare/47929,75055

Answer 1

Because the manufacturer decided so. Now they are both End of Life. Those. instead of reducing selling prices, the manufacturer simply discontinued the model.
Shops do not like to trade at a loss. For what they bought - for so much (+ extra charge) and they will sell. Look for some Core 2 Quad Q6600. How do you like a ten-year veteran for 7 thousand?
And at the time of their births, these were products in principle of different classes. Multi-socket configurations are traditionally more expensive. Plus, compare the amount of memory supported. Because radically different selling prices.

Answer 2

Because "I'd rather throw it in a landfill than sell it cheaper." features of the local market.

Answer 3

> Really someone in real life planted them with more than 32GB of memory 5 years ago?
Yes, they planted. Even hetzner rented 64G machines for a penny then (well, relative pennies, 200 euros for such a config was then nothing).
They are sold at such a price, because no one will buy them, except for those who need just such a stone (for a replacement, for example). And they will have to buy at any price - there are no other prices on the market anyway.