Female reproductive technologies have been shown to increase the rate of genetic gain. However, using these reproductive technologies incurs substantial costs to breeders using them. Selection decisions can be optimised using optimal contribution selection to optimise the balance between genetic gain and genetic diversity. Optimal contribution selection was used to find the balance between genetic merit, co-ancestry and cost of reproductive technologies. To offset the cost of using the reproductive technologies, breeders received varying proportions of the value of the genetic gain achieved by ram buyers. Australian terminal and Merino indexes were used. We observed proportions of the benefit received needed to be over 50% in the terminal breeding program before reproductive technologies were used. In the Merino breeding program, where the standard deviation of the index is 3 times higher than the terminal index, more MOET and JIVET matings were affordable. Rates of genetic gain increased in both indexes with more allocations of reproductive technologies. Higher proportions of JIVET were assigned compared to MOET due to a lower cost per lamb. We observed significantly higher benefits of genomic selection in the Merino index. Assigning costs of reproductive technologies allows for robust and practical breeding programs to be designed.