There's a very basic disagreement on what constitutes a human life, so I probably shouldn't even bother participating, and using a smile/sarcasm was probably in bad form.
If it advances medical research that saves more lives, then yes, by all means, use aborted fetuses for a net positive. If the option is, throw them in the trash, or use them for scientific good, then I'll choose the latter every single time.
And I say that as someone who (along with his girlfriend) made a decision to abort last year.