It will be partly to attract new (young) customers to their brand and also to reaffirm the brand image with existing customers. You see this a lot with car com

It will be partly to attract new (young) customers to their brand and also to reaffirm the brand image with existing customers. You see this a lot with car commercials. You won't buy a car after seeing the average car commercial. Most of them don't even explain why you should buy a specific car over another. They focus more on the aesthetics. They sell you the idea of being part of something by driving a car of this brand. And even if you have already bought a car for that brand, seeing a commercial again reenforces your binding with the brand (given you feel positive about the commercial message). This works really well with cars as for most people they are emotional irrational purchases.