How much does SIM cards cost for a cell phone Give me a range of how much they cost?

For at%26amp;t a sim card should only cost 30 dollars if you buy it without a new phone. Most places such as bestbuy give you a new one for free when you get a new phone. Im not sure on prices for other providers such as tmobile





p.s. Cingular is at%26amp;t

How much does SIM cards cost for a cell phone Give me a range of how much they cost?
30 to 60 bucks, depending on the mem size