Well, did you listen to the Phantoms? Nevermind the price...price is irrelevant if you didn't like the sound. If you don't like the sound, they could be selling them for $150 and it still wouldn't be a good deal.
I don't know for sure, buy my hunch would be that you'd be getting a better quality product, in terms of sound reproduction and build quality, with the Axioms. They do have a decent return policy, so may be worth it to try them out at home with our own equipment in your own environment. That's the best way to make a determination. Just my .02 cents.