This gets framed as an either-or choice more often than it should be. The honest answer is that they solve different problems, and the right mix depends on your specific situation rather than one universally being the better option.
What Google Shopping actually does well
Shopping ads put your product directly in front of someone actively searching, with a price and image visible before they even click. It produces results quickly, which matters for a new store with no organic visibility yet, or for competitive terms where ranking organically would take significant time.
What organic SEO actually does well
Organic rankings don't cost anything per click, and a well-ranking page keeps bringing traffic for as long as it holds that position, without an ongoing spend requirement. This makes it a genuine asset that compounds in value over time, rather than a cost that stops working the moment you stop paying.
Why they're not actually competing for the same budget line
A lot of the underlying work, accurate product titles, complete data, genuine content, benefits both channels simultaneously. Treating them as entirely separate efforts, sometimes run by different people with no coordination, often means duplicating work or sending inconsistent signals across the two.
A practical way to think about the split
Newer stores or highly competitive categories often lean more heavily on Shopping initially, while building organic visibility in parallel. As organic rankings mature, the reliance on paid Shopping spend for the same terms often decreases, though most established stores continue running both.