hi all,im a newby on the forum,recently got interested in photography,picked up a 60d and a sigma 17-50 os ex lens and a canon 50-1.8 I also have a Nikon d5100 with 18-105.i have an opurtunity to pick up a 70-200 l is ii for a pretty good price,now I realize the lens is wayyyyy more than what I need as a beginner but if its something I shouldn't grow out of and need something better later on would it be wise to bite the bullet now or later?later I may not find one for this price,i think I would get some good use from the 2.8 as I shot some indoor lacrosse recently and I could have used a bettr lens than my kit 55-250,also tried to shoot a friends son in a rock band concert where the lighting was all over the place,the only good keepers were the ones with the 50 almost standing on the stage haha.im sure I will be using the 70-200 quite a bit but it is a lot to put out right now,more than I paid for my 60d with 2 lens anniversary bundle and 50mm tripod remote bundle and spare battery put together,but from what I have read its not something u grow out of,if I can afford it,should I just do it now instead of later on,thanx for any input


