Almost every proposal you will receive in Dubai quotes a cost per lead. It is the easiest number to compete on and the easiest to manipulate. Broaden the targeting, remove the qualification questions, and cost per lead falls immediately. Cost per closed deal goes up at the same time, but that number does not appear on the proposal.
The four things that genuinely move the price are the price band of what you sell, the channels involved, the depth of qualification inside the funnel, and how the engagement is structured. A payment-plan apartment and a luxury villa in the same city sit at completely different cost points because the buyer pool differs by an order of magnitude.
The number worth comparing is cost per qualified meeting, or in education, cost per enrolment. On Ghaf Woods, 800+ leads produced 100+ buyer meetings and 40+ closings. On a payment-plan portfolio, 800+ leads produced 150+ meetings, a 19 percent lead to meeting rate. On the DAMAC Islands UK campaign, roughly one lead in three became a buyer meeting. Those ratios tell you far more about efficiency than any cost per lead figure.
Ask any agency for their lead to meeting rate on accounts like yours. If they can only give you cost per lead, they are not measuring the part that determines whether the spend pays back.