I presume no one is building new motherboards for those processors either. While there is old stock laying around, you really need to run those systems close to as-is for them to be useful.
These are high spec cpus for the socket though. Lots of room for people with compatible boards that want to upgrade.
There's a lot of low budget hosting with old Xeon systems (I'm paying $30/month for a dual westmere system; but I've seen plenty of offers on newer gear); you can still do a lot with an 18 core Broadwell, if the power is cheap.
That's actually far from the truth, LGA2011 is quite popular as a budged gaming system precicely because CPUs are so cheap on the 2nd hand market.
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