iron bars because they didn't want visitors at their place and no one wants iron bars and no one stole them
they use them to keep the other spartans safe.
The Spartans used Iron bars. Note that sometimes the rule of not having wealth in gold and silver was eluded by Spartans who held money in foreign temples.
Meet the Spartans grossed $84,646,831 worldwide.
Meet the Spartans grossed $38,233,676 in the domestic market.
Spartans were not supposed to have money as Lycurgus (an ancient spartan who basically made all their rules) forebade it as money was the root of all EVIL... 0_0 ...according to him at least. :-P But the slaves(each male Spartan had two personal + number of them at home) were allowed to have money,and did all the buying for Spartans themselves.Also Periokoi were allowed to have money,so money did exist and was in use in Sparta.Only citizens-soldiers were not allowed to have or use any.
they had more money
The company that made Meet The Spartans made $84,558,676 from the movie.
The Spartans used weapons so they could have extra help in war
Legend has it that the Spartans utilized iron bars, to discourage hoarding. Archaeologists continue to search for evidence to support this legend. It seems likely that the Spartans utilized coins that had been minted elsewhere.
Roman
Peloponnesian War.
Peloponnesian War.