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If you are a PS fanatic you will never need LP. If, however you want to invest the time to learn LP you should. Reasons? 48 bit color, speed, resolution independent brushes (gradients also), image distortion, unlimited undo, large file manipulation (FITS), ultra modern interface (ie, no floating menus), texture world, multiple size outputs, cool (but not utilitarian) cloning tool, push/diffuse brush. 48 bit color. What this means is you pick a color you want and it samples it at 48 bit and when you make a build it picks the best 24 (RGB) or 32 (CMYK) bits. The results are amazing. This allows for a truer color of the original. Think of it this way, instead of each color having 256 shades of gray, each color has 65,536 shades of gray, from which the "build" will choose from. You decide. Speed, yes speed. Live Picture is near real time, for all but 3rd party filters, where it slows down considerably. Resolution independent brushes. create a 10'x10' document in each of PS and ...