I was going to just put in a comment on the previous post but found the topic needed its own spotlight. I'll probably get in trouble for this but oh well; it won't be the first time.
The last time I checked, sperm is referred to as the "seed of life". This is from literature, movies and various religions. As much as the egg the female produces is the foundation of life, the spark that allows life to grow is provided from the male's sperm. As the genetic material, our chromosomes, are provided equally between the two, it would seem that neither is more important than the other. Neither side has been replicated artificially so if one part is missing, life simply is impossible.
Now, while I will more than concede that female donaters have a longer protocol, a move invasive procedure and more than likely a greater attachment to their "gift", I don't think ALL men who walk into a clinic, or agree for a friend, to "produce" genetic material to order RIGHT NOW should be painted with the same disconnected brush. A stranger may just toss-off in order to make a quick buck and has no thoughts of where that could eventually lead, but those who either know the person/couple it is going to or is donating for a higher purpose go through a lot more than a momentary euphoric feeling.
I cannot speak as one who donated for money but I can speak as one who is a part fo the process and I can surely say that the supporting role only has the invasive procedure missing from the equation. I get all of the worry, stress, concern, anxiety, joys and disappointments that my partner does and I would go so far as to say a bit more since I shoulder not only my own but hers as well. While I will agree we have it easier, I would never allow anyone to say we have it "easy".
Just a quick thought. :)