[Elecraft] KX3 vs. K3 updated or K3S Question

[Terry Brown]

For the folks that have both a KX3 and KXPA100 and either a K3 updated or K3S,  for CW operation,  what have you found from a technical point of view are the advantages of the K3 or K3S over the KX3?

I have almost bought an updated K3 several times, but as a CW operator I am not sure I can justify it.  

I also have the PX3 and love it and so I’d need a P3 as well. 

Would be nice to have 100 Watts in one box, but I also own a KX2 for QRP and use the KX3 line as my base station. 

The thing that might swing things is if the K3/K3s was technically a lot better for CW. I can’t convince myself that it is. 

Any Thoughts?

Thanks

73,

Terry
N7TB