It is VERY hard to beat CruiseQuick's pricing. I know - I was going to go back into being a TA until I found out how little I'd be making. If I matched Cruise Value Center & CruiseQuick's pricing, I'd be $10 in the hole on our own booking. The agency I was working for was going to make 3%, me: zero, ziltch, nada, nothing! So, these online agencies are making about 2% per booking, at most.
Where they make their money is when the prices drop and people DON'T ask for the price reduction. Many people don't know about it, don't care or don't want to take the time to deal with it. For me, I couldn't be a TA and do that to people. IMO, it's dishonest. I would want my clients to get the best prices, always. It's just not a money-making thing unless you can book in massive volume like these agencies do. So, good luck to these 'biggies', the little guys just can't compete. And, I'll be giving CruiseQuick a call too!