The Ninja 250R in the USA has a MSRP of US$2,999. (CDN$3495)
The 2006 Ninja ZZR250 in Canada has a MSRP of CDN$6,299.
I see that the ZZR250 2006 is nicer looking, and has a few features that the 250R doesn't have such as an anti-theft system, but I can't see why the Canadian MSRP is 80% higher. Such a huge difference would justify importing it if possible.
I don't know what kind of discount I could obtain off MSRP at Burnaby Kawasaki but I'd expect no more than 5-10% off MSRP as an out-the-door price (before taxes)