Is there really a financial incentive for healthy people to donate? Where are these sperm banks paying top dollar for better sperm? Based on what I've read in

Is there really a financial incentive for healthy people to donate? Where are these sperm banks paying top dollar for better sperm? Based on what I've read in the news about artificial insemination outcomes using sperm sourced from banks, there's just enough financial incentive for poor people to donate, and they lie in the poorly vetted paperwork about their health, education, background, etc.