I don't know about this set. But I was thinking of shelling $$$ for the Bose noise cancelling headset or something similar, so that I can use my Smartphone while mowing the lawn. ;-)
But $250+ for a regular headset is a little extreme, I will only go upto $100.
If I had a need, I guess that's as high as I would go. Unless we're talking real stereo headphones. I would go a little higher for a good set of those. Maybe $175 or so.
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"I have no special talents, I am only passionately curious" - Albert Einstein