Hyper-Threading in ESXi

I'm planning on buying replacement parts for my Home ESXi server. I don't need anything powerful. But in anyone's experience does hyperthreading really help? Should I spend the extra $ for 4 core w/HT? I currently run 5 1vCPU VM's. Which is a almost perfect fit for current AMD X6 1090T. VM's mostly sit idle, but my NAS and game server VMs take a toll on overall system performance when in heavy use.

Can anyone share experiences with overloading (more virtual than physical cores) a 4 core...

Hyper-Threading in ESXi