The biggest benefit of liveaboards especially in the Red Sea are the night dives and you'd miss that on day boats.
Not so......we did night dives from the beach. My comments were directed at the op(and his experience) and I feel day boats will give him all the diving he wants plus bars and restaurants for the evening.....should he so wish.
Of course, I have been wrong before but thats how I see it 🙂