Originally posted by Aristophanes It's called either the 18-135 or 60-250.
It's been mentioned before the 60-250 is a different animal. Yes, it's weather-sealed, but its huge, heavy, has SDM, and costs about $1200 USD at B&H right now. Some people don't want to lug around a big lens. Some folks still distrust SDM. And of course some folk don't want to shell out big dough for a lens.
The 55-300 costs about $350 USD at B&H right now. Say a WR version in the $350 to $550 ballpark would probably do well. It will be WR, and light, more portable, and have the stable screwdrive focusing. It would still be a good companion to the 18-55 or the new 18-135 WR lenses. It would be a more mid-tier lens, the cheaper 50-200 being low tier, and the * 60-250 being the high tier.