Titled NSR's in the U.S. are rare and coveted. Expect to pay $4K minimum for a decent running example. Untitled can be had for much less. I paid almost $4K for mine 1 1/2 years ago. Even though the price was not bad, the bike needed some help. The body work was scraped with a few cracks and the front forks were bent beyond repair. Lots of small items that needed to be replaced. Basically what I'm saying (from my experience) is that if you find a good titled NSR, expect to pay $5K or above. Anything under $4K will probably need work. Also, just because the bike is titled in one state, don't take for granted that you can have it titled in your state. I've heard a few horror stories concerning this.
Don
Atlanta, GA