I've taken a quick look at the Xceed grid and it still look to me as eye-candy. I haven't seen the killer feature that I just must have.

>I've heard that same argument before. You need to think outside the box here. There are many ways to visualize data that can add value to the app. Look at this demo http://download3.xceedsoft.com/demo/gridwpf/Xceed.Wpf.DataGrid.Samples.LiveExplorer.xbap
>
>Now, you may say, I don't need that. True, you may not need that.. today. You may say, I can do that with Winforms. True, but it's actually easier with WPF.
>
>Here are some links to consider:
>http://visualstudiomagazine.com/articles/2007/09/01/wpf-goes-to-work.aspx
>http://blogs.msdn.com/jaimer/pages/WPFLobWhy.aspx
>http://community.infragistics.com/wpf/media/p/79117.aspx