Well, Finn, it is because everyone is different. Any of the choices were difficult for this couple.
This is from the article describing how one of the parents felt about giving the embryos for adoption
" offering the embryos for adoption -- is surrounded by difficult legal questions in Massachusetts, and felt impossible to Dooley to pursue. "I was looking at my children and thinking, `that is like giving you away to a stranger,' " she said."
And why she choose to donate to research
"The vast majority of the country's excess embryos are discarded: removed from their freezer, dropped into an orange biohazard bag with the day's used pipettes and Petri dishes, and thrown out with the day's medical waste. For Marie Dooley, that was never an option with her embryos. She thought of all the work that went into creating them -- her own ups and downs, the "humiliation" of her husband going into a room with adult magazines, even the hours her father spent waiting for her in the parking lot for clinic visits. "It just seemed like such a waste to throw them away," Dooley said
.
A year after getting the letter from Boston IVF, Dooley says she feels happy with her decision. Dooley voted for President Bush in the last election, and she plans on voting for him again, despite his opposition to the work Melton is doing. The embryos don't have a heartbeat, she says, and deciding what to do with them was an intensely personal choice.
As she has watched the political battle over stem cell research unfold, she has sometimes thought of sending the president pictures of her family.
"Science gave me a gift," she said, as her children circled around the dining room table. "I felt I should give back."
For the entire article which has lots of interesting information about the above and about what stem research is about see:
http://www.boston.com/news/nation/articles/2004/04/04/after_2_children_via_ivf_pair_faced_stem_cell_issue/