A product page's job is to replace the in-store experience — answering the questions a customer would ask an associate before buying. Pages that only show a photo and a price leave that job undone, and undone objections turn into abandoned carts.
Merchandizing also determines how efficiently your catalog converts as a whole. Poorly organized collections make it harder for customers to find what they're looking for, while smart cross-sell placement can meaningfully increase average order value without adding acquisition cost.
As product lines grow, merchandizing strategy has to scale with them. What works for a 5-SKU catalog — a simple grid, minimal navigation — breaks down at 50 SKUs without a deliberate structure behind it.