I don't talk about it much because it never entered my world of monitor purchasing. When 30-inch LCD monitors hit 2560x1600 in ~2005, the market had become ~720 (768), ~1080 (1024), some 1200, and 1600. My recollection is that 2560x1440 didn't arrive until much later. By that point, I had already set up both my home and office workstations with multiple 30-inch monitors.

I feel like 1440 was an oddball late arrival that didn't move displays forward. To catch my eye, I wanted to see something greater than 1600. When talk of "4K" arrived, my interest was piqued and now with 4K reaching consumer pricing, it won't be long before everything before 4K seems passe.

What's to talk about? 1440p or 1600p monitors have been out for a long while. You can get an amazing QNIX2710LED for just $400 on Amazon.

I will say gaming grade 1440p/1600p monitors still aren't available, or some combination of gaming grade and high color reproduction (IPS). Some people have had luck overclocking Korean monitors to 120Hz. I don't know if we'll ever see a native 120Hz 2560x1440/1600 IPS monitor (w/Nvidia G-SYNC to boot).