Okay, so Yojimbo asks for 30,000 gil. You can lower the price to about 25,000. And, well, if you triple his amount, he gives you 2 Teleport Spheres. Is it worth it? I don't know any other better ways of getting Teleport Spheres or Friend Spheres. On top of that, I don't know what to use my money on, really.

If it's not worth it, what's a better way of getting Teleport Spheres? And what else do I need money for?