I think it is the question of do you need the 11-16mm? Do you have these lengths covered already? I have my set of lenses that cover my needs and then some that are fun to own ie. some primes and an anamorphic adapter, etc. Most of my shooting doesn't call for 2.35 ratio but I love shooting it. In fact I've only had one gig that paid for it.
The 11-16 is a nice lens and gives you good wide end coverage. Plus for the price you really can't go wrong. As far as the LA7200 goes, I have never used one but I have heard plenty of good things about them.