Why do gas prices continue to end in nine-tenths of a cent?

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ST. LOUIS, MO (KPLR) - I don't know anyone who is complaining over the drop in gas prices.  It's been a real relief for anyone who drives on a regular basis.  Since we're headed in the direction of dropping gas prices, let's go all the way.

What I mean by that is let's drop that goofy nine tenths of a cent that I've only ever seen attacked with gas prices.  I've never carried nine-tenths of a cent in my pocket, but for some reason that's the way the gasoline business prices things.

I'm told it dates back to an issue with taxes and also a way to make customers feel as if the price is lower than it really is.  For example, $1.99.9 looks a lot cheaper than $2.00.

Well the charade has gone on long enough.  Now that gas prices have dropped the way they have, how about dropping the nine-tenths of a cent from the bill.

I'm JB and that's The Way it Oughta Be.