Here is a little background for you: I recently upgraded my camera body and feel it is now time to upgrade my glass as well, since I'm starting to book jobs for weddings and portrait sessions. I'm looking for a good, low-light capable telephoto lens to replace my Sigma 70-300 4.5-5.6 and would like this to be an upgrade that lasts many years to come. My favorite current lens is my 85 1.8 prime as the quality is superb and can not compare to any of my zooms, but at the same time zooms give flexibility.
Do you all have a vote or opinion as of whether you feel the prime would suffice well, or whether to get the zoom? I mostly want the far end of the mm scale (200), so am not sure if it's worth the extra $500 that the zoom costs, especially since I already have the 85 mm range covered. Opinions, advice?
Thanks! (P.s. The 200mm costs $769 and the 70-200 costs $1300)