dell 20 inch lcd monitor

i have a question about the dell 20 inch lcd monitor. why is the non-widescreen version more expensive than the widescree one? isn't a widescreen better than a non-widescreen?

It depends on what you intend to do with the monitor. If you are doing video editing/watching in HD, then sure, the widescreen aspect ratio is more appealing. If you are doing desktop publishing, 2D graphic design, etc., then the standard monitor will support a higher resolution and you can get fit more of what you are editing/creating on the desktop.