The price difference isn't always 20-30% anymore - competition's brought those gaps down quite a bit, so it's worth checking actual prices rather than assuming the premium. That said, with a toddler around, low-VOC does make sense not because you'll smell some magical difference, but because volatile organic compounds genuinely off-gas less, especially in the first weeks after painting, and kids' developing lungs are more sensitive to that stuff than ours are. The real question is whether you notice the smell and headaches - if regular paint fumes hit you hard when you're painting, low-VOC will feel noticeably gentler. It's not pure marketing, but it's also not a night-and-day transformation; it's more like reducing an irritant that was already there.