Yeah. I've seen baby male clowns as low as $1000. Females are a different story. You'll have better luck producing your own clown from a het-het breeding. Het clowns are cheap. Males under $100 and Females in the $300 range. (warning, hets look normal)
Pastels, like everyone else said, ranges from $75-150 males and $100-200 females.
Breeder sized pastel females typically go for around $400-600 depending on quality and if its a proven breeder.z
For the future note, females always gain value as they age and grow.