Yeah, 200 is too much. I am sure you can find much better trees on ebay or so. ALso, look outside the bonsai scene. Look for locally run small scale self-growing nurseries. They often have trees that are crooked etc which you can have for little.
My favorite source however are backyards. Look for public advertisements of plants that people want removed. (Or even more pro-active: Place one yourself that you are looking for old shrubs, and would be happy to help people remove shrubs for free, if you can take the stump. Do NOT mention bonsai or else dollar signs start shining)