iPhone advertising back in 2007-era revolutionised computing and managed to convince a lot of people to pa for quality phones instead of putting up with the usual cheap product that most companies produce. It was a two-for-one.

AWS advertising generally has been a major contributor to the success of at least two companies I worked at.

I get reminded from time to time that I could saved quite a bit on my retirement fund if I switched to one with lower fees. One day an ad will probably hit me at the right moment and I'll actually do it.