Just a reminder that, if you spend the money buying one of the cool sets of metal dice we have on display (or buy them some place else) a dice tray is probably a good investment. These are metal, after all and rolling the solid ones can certainly damage your tabletop. In addition, especially if you purchased one of the hollow sets, rolling them on something hard could damage the dice. Purchasing a felt line dice tray is a good investment if you want to keep your metal dice in good condition.
Also, because of their heft, metal dice tend to roll further than you may be used to with plactic dice and a dice tray will keep them corralled in front of you.