What Mike said... You want color accuracy consistancy over vibrancy and speed. Most TN panels have quicker response times compared to IPS, but move yourself one direction or an other and the brightness and color tones can shift. IPS monitors usually cost $200-$300 more than an equivalent sized TN. A 27" IPS display can run you over $700. I paid slightly over $1,000 for my 30", but it's touted for having better color accuracy than Apple's 30" once calibrated.