I question whether there is "too much pleasure." The suicide and addiction rates in the demographically collapsing --- oops, "child-FREE" --- countries suggests that the pleasure level, or (maybe a subtle difference) the
satisfaction level of fragmented, weak-bonded, noprocreative sex may not be that satisfactory.
I'm for the solid satisfaction of child-blessed marriage.
It does save you from the leprosy of loneliness. Over the long run, that counts for a lot.