The essential difference
The best analogy is that of rent versus equity. Paid media is like renting visibility: you pay and appear immediately, but the moment you stop paying, traffic ceases. SEO is like building your own property: it takes time and effort to build, but once it's ready, it continues to generate traffic without you paying for each visit.
Neither is better than the other. They are tools with different natures: one delivers speed, the other builds a lasting asset.
