Digital is the future
Collecting face to face survey data can be costly. You have to pay for the interviewers. Digital surveys and customer data collection techniques run automatically, and there are many solutions on the market can distill that data into actionable information.
Digital data collection techniques also allow for much larger sample sizes, improving the reliability of data. FAce to face surveys can be difficult to conduct at any kind of large scale unless you have massive resources.
Companies often use special discounts to encourage people to give them information, but that’s harder to do with traditional methods, as someone usually has to mail in a form and then wait to get a coupon in return. With modern tools, customers can just give you their contact information and then see the deal automatically show up in their inbox.