Usually yes, because one extra sale can pay for months of marketing.
The real cost is a slow launch. Unsold units tie up money, and a project that looks unfinished online makes buyers wait.
It is worth it when the company can:
- make buyers see the finished project, not an empty plot;
- show you enquiries and cost per enquiry every month;
- leave you owning every render, file and ad account.
It is not worth it if they only post pretty pictures with no tracking. Ask for results in numbers before you sign.