PP and their ilk don’t fight laws requiring ultrasounds prior to an abortion solely because the machines are expensive - the machines are not cheap, nor is a person trained to use one, but they are also very useful diagnostic tools. Their greater fear, IMO, is that many women, on seeing thier baby, will decline to have an abortion. An example of what more advanced ultrasound machines can discern:
Ultrasound pictures show fetus yawning at 24 weeks****
Ultrasound scans of faces in utero can distinguish between when a fetus yawns and when it just opens its mouth, according to research published November 28 in the open access journal PLOS ONE by Nadja Reissland from the University of Durham and colleagues at other institutions.
The researchers found that during the period between 24 to 36 weeks of gestation, they could distinguish between yawns and simple mouth openings on ultrasound images of fetal faces. They report that simple mouth openings occur less often than yawns and the frequency of these openings declines from 24 weeks of gestation onward.