A personalized homepage needs a costly real-time profile service. Launch it?

Launch or notHard

Problem. A homepage that reflects each recognized traveler's recent searches and upcoming trips needs a new real-time profile service costing about $4M a year to run. In a test, recognized travelers who saw it booked more. It also added some load time for everyone. The product lead asks: should we launch?

Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.