Digital marketing field

Since I'm working in the digital marketing area, I've noticed that a huge effort was made in acquisition and sales fuel optimization. However, the product discovery part is kind of forgotten.
I'd like to know if you actually share this statement ? I find it incredible to spend lot of money on making people come to one's website without helping them find the product they are looking for.
What kind of tools are you using to help customers find the right product and buy it (search engines,...

Digital marketing field