Hi Tom and mid-60s Buick shutterbugs, . . .
I'm not sure why I went for it but I got my 70D with the 18-135 super versatile lens.
That's the very same lens that came with my camera. A local camera store was running a Black Friday special which included it. In shopping around, their price was better than anything I found elsewhere, including B & H in New York.
Good for you! How do you like that lens? I've been using mine for just about a year and overall I am pleased although it is disappointing that you lose a bit of image at maximum wide angle.
I'm thinking about something in the 300 mm range though......
I picked up an 80-300mm when I got my previous Canon (the Rebel 1Ti.) It is perfectly good for photographing wildlife. I haven't found much else that it can be easily used for. There are some distant landscape opportunities and if you want to create a photo that includes the Moon it's is good for that. Unless, you really have those sorts of applications in mind, you might not find it worth the cost.
Certainly you might try buying a lens from some place were you can return it, and return it if you indeed don't find it as useful as you imagined.
Enjoy your new camera!
Cheers, Edouard