Sure or a one off run where you just want the players to have chance to play with some fun toys. We recently finished one of the Dawn of Artifacts adventures and we spent half our time zipping around the countryside in a panzer/thunderbird. Sure we didn't own the thing, but if we got in a scrap we had stats for it. So they show up but I don't think most of it is intended for a 'typical' shadowrun. Aryeonos apparently runs campaigns based on the other use for these things, military/merc type campaigns. Just think of it as adding versatility to the game.