It really depends, the fact that you have a 4k TV makes you the prime audience for an Xbox One X.
It's also worth pointing out that while many say that this is a "mid-generation console refresh" the Xbox One X is essentially a generation ahead in terms of hardware upgrades when compared to the Xbox One S.
While the Ps4 Pro was more of a true "mid-generation refresh" because it wasn't actually a true 4k machine. It's more like a 2k machine, the Xbox One X can do native 4k.
If this business strategy works, we can see more refreshes within 2-3 years from both Sony and Microsoft.
This is why Microsoft is adamant about making games backwards and forwards compatible.
They essentially want to kill the usual 5 year console cycle in favor of a more smartphone like business model.
This is both good and bad haha