I don't care to 'see' it shoot... but I do know that if I don't feel him cum inside... it can be quite disappointing. Condoms usually leave the feeling of 'not finished' because of that... well for me they do.
However, life experiences have more or less made it less appealing for me to watch a man ejaculate... so I really can't speculate about a woman's natural inclination.
"The weakest soul, knowing its own weakness, and believing this truth that strength can only be developed by effort and practice, will, thus believing, at once begin to exert itself, and, adding effort to effort, patience to patience, and strength to strength, will never cease to develop, and will at last grow divinely strong."
- James Allen