Well keep in mind Apple charges QUITE the premium, and they just released a 24" LED LCD with an S-PVA panel for $899...
Well, you asked about IPS monitors with LED backlighting, not VA panels. I'll stick with my original estimate of at least $1,500 especially when NEC's current LCD2490WUXi with an IPS costs $1,100.
Also a big thing is response time though. I am a video/graphics professional that also happens to love gaming... are there are any H-IPS panels out there with fast response times like 6ms suitable for gaming/3D shooters/racing?