I don't take Viagra because I haven't needed it yet, but I'm 42 and my response times are getting longer.

Put simply, a desirable woman is desirable whether I'm erect or not.  For me, at least, the thought that I'd like to have sex with a woman usually occurs BEFORE I get the erection, not after.

When I was in my early 20s, I was basically a hormone with feet, and spent most of my time erect anyhow, so it was more a question of where I was going to aim the thing.  Now that I'm older and presumably wiser, I find my self desiring a woman for her intellect, her sense of humor, her creativity, her communications skills and her compassion.  I still like to look at women with pert breasts and full hips, but attraction and desire are more complicated than just her looks and I am thinking about making love to her long before I have to worry about aiming the thing.

So, if I were to venture a guess as to why a guy might need Viagra...I'd say it's because he's seen things in his lady that make him want her even before the time than erection becomes a factor.

Yoda