I only use mine on asphalt on very warm days, and when parked on anything the stand may sink into, loose gravel, grass, etc. I cut one so it fits into my glove box in the left side lower. Ive seen and heard people that drill a hole into them for a string so they can just pull the disk off the ground with out having to lean all the way over, or get off the bike to retrieve it.
last year we had a metric go over into the warm asphalt, sunk about 4 inches in then down, did some damage. felt bad for the guy. my bike was right next to his and for longer time, standing tall and shiny with the plate under the stand. pick one up, or make something for when you need it. that is allot of weight resting on that couple square inches. if you use it once a year its worth it.