title: Advice on image storing
body: <p>I am currently developing an app that will browse(and more things, but this is not relevant) youtube lists. Now whenever I get a video, I display it's corresponding image and show it in a listview (or gridview, again not relevant). Now here is the dilemma: is it better to store the images locally after they are downloaded, or do we download them every time we want them showed, i.e:<br>
   <code>this._image = new BitmapImage(new Uri("http://domain.com/content/someImage.jpg"));</code></p>