What's so great about the Nikon D7000?

What's so great about the Nikon D7000?

Nikon's D7000 is a "pro-sumer" camera. It's better built (metal body, better seels etc) than their mainstream consumer cameras. It also provides more options and greater all-round flexibility than the consumer models, as well as candy such as the LCD setting display.
If you are looking to buy a Nikon as your first DSLR, the D7000 is probably overkill, a D3200, or a D5100 would be a better starting point.

It's Nikon's highest end APS-C sensor camera.
If you don't know what's so great about it then you don't need those features you don't know about.
The entry level DSLRs are designed to do everything a beginner can and will ever need, I know people who bought an entry level DSLR years ago and have no need for the features included with higher end cameras as photography is only a hobby to them.
It's not the gear that makes the photos, it's the photographer that makes the photos. A good photographer can take a great photo with anything - even a box with a hole in it, google "pinhole photography".
I would recommend you get the entry level Nikon D3200 or entry level Canon 650D (Rebel T4i). Use the extra money to buy good quality lenses, a good camera is useless without good quality glass put infront of the sensor.