What the parent meant is that these kind of offers make more money long term. Partly by exposing your business to new customers, and partly by the simple fact t

What the parent meant is that these kind of offers make more money long term. Partly by exposing your business to new customers, and partly by the simple fact that many people see your company name. So if you set aside a 10k yearly advertising budget, offering deals which make you lose 2k is perfectly reasonable - if you think the exposure and new customers are worth it. The advertising budget is already accounted in the yearly ROI, so you don't have to worry on each deal's bottom line being in red.