There's far less pleasure but it's more fulfilling.
As in, you feel like you've accomplished something and feel better about yourself for a while. The feeling lasts a week or so max.
Getting to have sex with another human being takes some effort and pursuing it betters you as a person. It validates you on a deep subconscious level.
Every time I've jerked off I've felt a lingering sense of regret afterward and whenever I've been a long time without it I didn't really miss it.
