One advantage of a DSLR is the ability to have interchangeable lenses. To get a professional camcorder with interchangeable lenses and a lens you will have to go up a bit in price from the Canon XA20. However the XA20 does offer the option to use two XLR microphones to capture audio which is a critical part of capturing video and you could purchase additional attachment or converter or conversion lenses should you need one. I shoot with a Canon T4i and a Canon VIXIA HF G20 (neither of which is considered to be professional equipment) and have been pleased with quality of the video. I like the manual controls on both the DSLR and the camcorder. Personally, if my main purpose was shooting video I would go with a dedicated camcorder. Ultimately the decision is yours. If you have a camera/camcorder shop nearby I would suggest handling both and see which one you like best.