BrickPrism: LEGO price history for Portugal and Spain, updated daily

Hi Product Hunt 👋 I'm Nuno, a software engineer in Portugal. LEGO in Portugal and Spain is sold by dozens of shops at wildly different prices, and most "−30%" badges are measured against a price nobody ever paid. I kept missing real drops, so I built a scraper for myself — and then the site around it. What it does, today: • 954 sets, ~50 shops, prices collected three times a day • a page per set with the price history, so you can see whether today is actually low • discounts measured against LEGO's own list price, not the shop's • a methodology page that says exactly how every number is made What it does not do: no accounts, no ads, no newsletter wall. It is a one-person project. I would love feedback on two things: is the methodology convincing, and what would make you come back without a reminder?