Ok, maybe need is a bit strong. It is hard to say I ‘need’ any more lenses. Maybe it would be more accurate to say the lens I want versus the one that fills a hole. You see, I don’t currently have an ultra wide angle lens. I’ve actually never had an ultra wide angle lens for any camera I’ve had. So, I’ve been thinking about getting the PL8-18 for my next lens. It’s not cheap, but I like the range of the zoom and the reviews are good. But the lens I want is the 300/4. I enjoy wildlife photography, although I really don’t get to do nearly as much of it as I would like. I currently have the P100-300 that I use for that purpose. My results with that lens have improved as I’ve learned better how to use it, but of course the 300 Pro is a pretty big step up in price and quality. In all honesty, I would probably use the 40-150 2.8 more than either of those lenses, but it is a pretty hefty lens to me for general purpose and too short for most wildlife, which is when I don’t mind a larger lens as photography is often my purpose for the outing. But I am getting more into portraits and while I currently use primes for portraits, I would think the 40-150 2.8 would be a great portrait lens. This is all fairly academic at the moment as I don’t have the funds set aside for a lens purchase at the moment, but I’m pretty sure I’ll end up with one of these at some point this year and I’m enjoying thinking through the decision.