I'd say don't buy. You'll regret it and just end up whining like everyone else.
If you can live without it for now, do so until the focus "problem" is solved. If you still want one then, then get one. If still um and ah when there are no focus issues then you don't really want/need one. 
.But then again i've seen so many awesome shots taken with the cam, both nature and motorsport(member Brands shots for example) i just dont know what to do ?.


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