what I was leading on to is that you hit a point of diminishing returns when buying audio stuff.
the £200 headset isn't going to be 2x as good as the £100 set. the limited edition ones, 75% of what you're paying is going on the useless features that make them appear to be the second coming of christ. you're not getting better sound quality, you're getting green LEDs and 'military texture', expensive doesn't always equate to good.
The only upgrade you're really going to get is wireless. the x41's are exactly the same thing and half the price, to me it's a no brainer.