Is MoCA better for home network if coax cable is all over the house already? Or just rewire whole house with ethernet?
Assuming you don't have conduit for the network wires, use the wires you have until it hurts, and then face the pain of getting new wires in. If it never hurts enough for that, you get lucky.
If you have conduit, the game changes. Which is why some of us strongly suggest conduit for networking. But ripping the walls open for new wire when the wire you have works well enough for your actual use (as opposed to your theoretical not yet use) is pointless.
There is no &quot;just rewire&quot; without conduit, for any reasonable value of &quot;just.&quot;