I would actually expect most married men to have less frequent ejaculations. I'm not married myself, but my impression is that most couples don't keep up a daily sexual routine for several decades, and finding time and space to self-stimulate is awkward if your live-in partner is not in the mood.
One thing I actually prefer (ironically) about the single life is that the schedule of your sexual release, which has a big influence on mood, energy, and sleep, is totally under your control.
> finding time and space to self-stimulate is awkward
I still believe that the main reason for the iPad's success (ahead of letting it babysit your kids) was married men taking it into the bathroom to masturbate.
One thing I actually prefer (ironically) about the single life is that the schedule of your sexual release, which has a big influence on mood, energy, and sleep, is totally under your control.