<p>I know this remark might not be popular with photo.netters, but personally, I am bored by more wildlife imagery. I know what a bear looks like. I don't need to see another mug shot of one.</p>
<p>Rich, regarding your comment, "plan on going FX in the future and don't want to married to DX lenses," I would add that going to Yellowstone and the Grand Tetons is very exciting prospect, and not something you can do three times a year. Consider pulling the FX trigger now, if only something like a well-used D700.</p>
<p>With that said, as a professional who shoots two or three cameras at the same time with big glass on all of them, when I travel, I like to lighten my load and have fun. Since you have a D7100, which I can tell you is outstanding, you might consider one of Nikon's superzooms. I partnered my D7100 with the newest 18-200mm plus a Tokina 10-17mm fisheye, and I didn't feel like there were any gaps. I was able to express myself very well with that combination.</p>
<p>Nikon offers an 18-300mm for almost twice the price, and I don't think it's worth it.</p>
<p>If you really, really feel like wildlife photography is at the center of your goals, you need to rent a 600mm.</p>
<p>You are welcome to check out my March trip shot with the 18-200mm and the 10-17mm fisheye here... http://richardbarron.net/traveller/2014/03/31/my-two-cents-march-2014/</p>
<p>My assessment of the 18-200mm here... http://richardbarron.net/cameras/2014/04/07/the-long-and-the-short-of-it-superzooms/</p>