In-vitro is good for people who are having problems conceiving and want terribly to have a child. I have no problems with that.
I have a problem with it from this standpoint:
Just happened to hear a woman call in on a country-music station (they do this violins-playing/what's your problem/give us your opinion thing at night) yesterday. She said she did in vitro - and guess what? She has now 2 children and doesn't want any more. So she has to figure out what to do with the frozen embryos (4)! She doesn't want to just dump them (OK, no murder), but she's thinking she can give them up for adoption - isn't that a sin like "abandonment"?
She made these babies already and now she's tossing them aside simply because she and her husband are happy to just have 2 and don't want to be saddled with any more. How moral is this?
I think I'll avoid the in-vitro (if it ever came up), just to avoid these moral conundrums!