Thanks Herb, I'll pass that along.

Yes, I'm sure it's like with many things, once you get past a certain price point you hit an exponential curve where you can spend a lot of money for very little gain in performance.

She has a pretty good music store close to where she lives (in Germany) and is going there this weekend to demo a few of their mics.

She has great ears and will be able to tell which is the right one for her, she just wanted some knowledge before hand so that she would be prepared.