The more serious you are about photography, the more important it is that you have a monitor that can accurately display and represent your pictures. A monitor that cannot accurately represent your pictures will cause you to adjust your colors or levels incorrectly, which then means that what you see on your computer monitor will not match what you see in the printed photograph. Also, if the monitor cannot properly display your picture, you will waste a lot of time editing your pictures and need to re-edit them at some point to correct the problems. If you are not yet this serious and rarely do more with your pictures than a bit of cropping and an exposure adjustment, then most monitors might be adequate.