THreadripper price makes sense
AMD charges a high price because they can sell plenty at that price. The 3960X has a base clock higher than the 3950X and good overclock potential. With the right water cooling system(unit on CPU full size--not undersized with adapter), it is possible to really pump up the power. While not critical for most people, 4 channel memory also boosts throughput. If you need the extra PCI 4 channels or multiple PCI4 speed SSDs, the 3960X can run them without compromise. The 3950X is a very good standard desktop platform, but has multiple bottlenecks that limit what it can do. Pricing is targeting the product at the market of those who need the high end workstation functionality. Those people are generally less price sensitive and concerned with work throughput more than an extra $1000 or two in a workstation.