Discussion Does 5 Liters Make a Big Difference in Travel Bags?

I'm currently trying to decide between two travel bags that are almost identical, except one has a 5-liter larger capacity. It doesn't seem like much, but I'm wondering if that extra space could actually make a significant difference on a trip. Has anyone experienced a situation where a slightly larger bag made things easier or more convenient? Or is it something you wouldn't even notice in practical use? Curious to hear your thoughts or experiences with this.