Yeah, about the $200 mark is where the price of diminishing returns hits but you still need to know the right ones to choose, thankfully to the community we can dig through them and sift out the duds, because there's some real crap out there. Take the Dunu DN -1000 for example, which to me sounds so much better then Westone 4 costing almost double. Or H-200 another good value for money.
Ok now coming from you, now I'm really truly super excited about my DUNU 1000. As good or better sounding than the Westone 4?! Bring in on!!