I'd like a good kickstand on my heavier errand bike but the one it came with was useless. A typical misfit chainstay crusher that wobbled and couldn't be trusted. So I removed it.

My lighter hybridized mountain bike doesn't really need the kickstand but I've left it on because it's a fairly unique German made doodad that form fits around the chainstay and seatstay. It's lightweight stamped steel rather than massive, heavy cast aluminum. Probably doesn't weigh enough to matter, but I might remove it because it clatters on rough roads.