£3.5k for a cpu - " such incredible value for money"
Really? Lol
To get less cores and about two thirds of the 3990X performance from Intel, you'd need to spend about 20 grand on two of their top end data centre CPUs.
Compared to the available alternatives for similar performance, the 3990X is a bargain. It is not for gamers, it's for people who need very high performance right at their desktop, usually some kind of rendering (such as real time) or content creation.