That just shows how dead-set Intel is, AGAINST giving their customers "good value" for money.
Edit: What I mean is, if this was purely an issue of increased demand, then we would start to see the other neighboring SKUs in the stack start to rise in price, or have shortages too. (See what is happening with mid-range video cards and mining.)
The fact that this does not, from my observations, seem to be happening, seems to point squarely at Intel intentionally reducing the supply of this one SKU, because it represents such good value-for-money. More than Intel was intending to provide.