I agree that with proper skills 85mm could be used practically for everything but is it the best choice for landscapes and stills? I think a couple of zooms covering wide and telephoto would provide much greater creativity/flexibility in framing the shot than 85mm. I love using mine for taking pictures of my kids indoor and out, but for everything else I would most definitely choose something else; in my case that would be a couple of fast zooms plus one macro. And since the OP doesn’t have a macro lens yet, maybe something like 105 macro would be a better alternative to 85mm (I might be mistaken the exact focal lens of the macro lens but you see what I mean). Just a thought.