Personally I don't like laces on my riding boots. Seen too many things get sucked into chains or conveyors in my short time to want to risk that. Otherwise, they seem like nice hikers (if they aren't too heavy) that can be used more safely than most on a motorcycle. The price aint bad either. They certainly won't have much shin protection as a real off-road boot though.
I found my waterproof mid-length boot: Tour Master Solutions.

Hope they're actually waterproof, I'll probably be able to find out in the next few days if this weather keeps up.

Now I've got three pairs: warm 3-season street (thor 50/50), rain (tourmasters), and off-road weather-be-damned (Alpinestars Tech6). I've still got my cheap rubber overboots too for the thor's and the A*.