Why didn't push as a traditional operation method be abandoned?

Costs, benefits and results. To give a few examples, 1: There is a lot of online data, a large amount of brush, unstable conversion rate, cheating and anti-cheating. Of course, offline is not necessarily stable. For example, many people are greedy and cheap, so they can't be transformed twice, but there is a better content offline, which is to take photos and report after gathering people. 2. Offline shortcomings are also obvious, such as labor costs and process costs, but accurate user information (notebooks) can be obtained without investing a lot of technical costs, which can be simply and rudely copied and promoted. It is common for banks to open cards, such as iron gifts, mobile employees, unsatisfactory performance, and employees who change jobs continue to give gifts. 3. Online and offline, in the final analysis, all serve the transformation. Either way, it is a good way to drain the product. Taking English training as an example, the offline customer acquisition cost is 20%-30% of the course price, and the marketing cost of OV mobile phone is also 30%+. Xiaomi went online before, and now he is advertising at the bus stop. Personally, it is also because offline can bring the passenger flow of products.