I noticed that harld anyone even bothers to buy those maps from the store, they can get the same things and better from user maps...
So maybe you could add a few of these extra things into the buyable maps? That way people buy it, the ones who suggested the crazy extra map stuff can be happy, and it won't make the game difficult or stupid for the people who don't want most of those extra things to be all over (because most of them would overcomplicate the game and kill some of the fun, in some cases)