Each year in the U.S., thousands of desperate infertile couples spend more than $12,000 for just one in vitro fertilization attempt. In countries like India, however, IVF is roughly one-quarter of the price. Increasingly, young people are doing the math, booking vacations and coming back pregnant. Writer Brian Alexander explores this “fertility tourism” trend and how fertility treatments – much like prescription drugs – have become such a hot commodity in the global marketplace