Max Charisma?
 

Is charisma mitigated like intelligence after 200 or is there a benefit to having max charisma?

I think there is a soft cap, meaning that the amount of charisma over 200 is still usefull, but less so than the previous amount.

I find that for higher end charming, every little bit helps.

You will notice it under 200. above 200 is debatable but if you can get it without hurting other stats too much then there is no reason to not get it. HP is extremely important too, don't take it down to nothing for a little more CHA.

People say there are diminishing returns but I feel like they aren't so diminished that maxing it isn't where you want to be at 60. That being said, unless you are high-end raid geared and I mean better than Illusionist's armor, you will need to compromise in different situations. This means carrying multiple pieces of gear for many slots. Even if cha above 200 does nothing for charm, lowering your chance of a critical resist of pacify by any amount is useful in certain scenarios.

And does cha affect necro / druid charms?

I've heard different things and an unsure.

Necro/druid is based on level and magic resist, not cha. Cha effects merchants prices, charms and lulls. Solo or in group, I always throw on my cha gear to max it out unless Im fighting outdoors and a charm break is no problem.

Hellion... off topic - Do you read MBoTF?

Thanks everyone. I guess even if it's slightly beneficial it's probably still a good idea.

Not sure what that is so no.

No worries, it's just your name is similar to one of the characters in the series