We're in talks with a local digital agency in Moscow to rebuild our B2B wholesale building materials and hardware site. They quoted a total budget of 450,000 rubles. Looking through the price breakdown, I noticed a separate line item of 140,000 rubles for user interface design—or dizayn interfeysov in Russian.
When I asked the dev team, they said that instead of skinning a ready-made theme, they'll design every page layout, checkout step, and client dashboard from scratch. From our perspective, as long as the product catalog opens properly and the add-to-cart works, that should be enough. After all, we sell standard stuff like screws, metal profiles, paint, and insulation.
What do we actually lose if we drop this line item entirely and just go with coding on a standard template? What is UI design exactly, how does it differ from what the developer does, and is this cost really worth it?