True. Each day the married priest must choose between having sex with his wife and celebrating the Holy Eucharist. According to Tradition, the two cannot be done on the same day. Knowing the infinite value of the Holy Eucharist, in a reasonable world this would be an easy decision to make. Yet there are plenty of priests having kids. Hmmm....
Why is that?
Daily Divine Liturgies are not at all the norm in Orthodox parishes anywhere. Many monasteries have a daily liturgy, but they, of course, are populated with celibates.
Abstention from marital relations is a form of fasting and just as we lay people and clergy fast from food for 12 hours before receiving communion, so also do we abstain from relations before communion.