I've seen tons of very nicely processed photos utilizing plug-ins like Silver Efex. But I've also seen tons that are processed solely utilizing Lightroom or Aperture's tools. Do the plug-ins actually offer anything that one can't re-create on his own in LR, Aperture or PS? Or are the plug-ins merely glorified "presets" of LR (or Aperture or PS) that someone else already came up with, and which merely makes my life easier?j I ask because the price of some plug-ins are outrageously expensive (if they are in fact just glorified presets that I should be able to recreate in LR). Your thoughts are very much appreciated.