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Old 12-03-2012, 01:19 AM   #7
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If the choice is between aluminum and steel, call around and find out where and what prices there are for refills versus swaps. I find that it's easier to find a place that does swaps, and they're generally less expensive (though I live in a decent-sized city), so you'll likely be best off, financially, with steel. But you may have a cheap refill place just around the corner, in which case a nice shiny aluminum cylinder may be ideal.
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