This is how I felt as an undergrad working in a research lab. Endless, annoying pipetting. Labeling tubes. Bitchwork that the postdoc didn't want to do. I kept thinking... there's no way they can't come up with a robot to do this.
My guess is the technology to do it is there but the motivation isn't - most undergrads (me included) work in research labs for free with the hope of getting into med school.
Luckily, I'm in med school now so I don't have to worry about being taken advantage of in that way. But every time I think about how the system does this to so many premeds, it pisses me off.