My suggestion would be to visit the store and try them all out.

The sales people should be willing to set them up if they are not already set up so you can listen to them and see which one you like the best.

Each mic sounds different and I'm sure the headset wear-ability will vary as well. You need something that is comfortable to wear for several hours straight and has a sound that fits your voice.

Good ones are going to cost more. Cheap ones perhaps will not have the quality and durable components. If they have a low price, chances are good that the circuit designers took short cuts and left out components and used a cheaper element. That's why you need to try them.

I have a philosophy that others I know also have. You get what you pay for generally speaking. I will pay a few dollars more to go a few steps up the quality chain when it comes to musical gear. I have never regretted doing that.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.