haha! If you want a katana thats even near the real deal, you'll have to pay at least $350. A reasonable sword costs around $700(thats what I'll be buying). for $700, you get carbon steel, real same, real hamon line, good fittings etc. A good sword. Unless you're going to cut stuff with it(which I'm not planning on doing, its for decoration purposes).
Expect to be saving some money man, but expect to be loving your sword if you finally buy it(and you're going to do tameshi-giri with it). Swords should be picked carefully, because you have to pay it respect for the rest of your life.
Create your own path, your own rules, and only THEN will your life bow to you.