I have a red wagon with tall pneumatic tires. It started as a red wagon with tall, thin hard rubber tires. That's when I learned a couple things: Those tires don't go through gravel or sand worth a tinker's damn, and they provide absolutely zero shock absorbing ability, so every little bump makes your tools and tool box rattle. That doesn't seem like a big deal, until the walk through the yard starts sounding like someone thru all your tools in the clothes drier.
they aren't cheap, but they fit neatly in a trunk, and haul a lot of weight.
-Brad