what is the least I can spend on a decent Kawasaki Ninja motorcycle?

Ive wanted a bike for a while but havent been able to afford it with college loans and such. What do you think is the cheapest price for a decent one?

You can buy a used ninja 250 for around a thousand dollars.. If you want to buy a new one for cheap you can get a ninja 650r for about $7,000. You can get a used 636 in good shape for around $4,000.

Get a Ninja EX500R they are cheap to buy cheap to inshore and they are grate for new riders. Don't get a 636 they have too much power for a beginner besides they are more expensive and the insurance is more.

Ninja 500 show up on craigslist every now and then for $1500 - $2000... which is way low, and the comment reads"need money"or"wife says get rid of it."