My April 21 column that tried to answer the simple question, "How much cheaper is Wal-Mart than Target?" prompted more than 350 online responses.
My own price comparison showed Wal-Mart was 4 percent cheaper on a sampling of 30 items. But many readers wanted more than a price comparison. They wanted a further discussion of issues such as fair wages, employee benefits and charitable giving.
A few readers, mostly Target fans and at least one Target employee, quibbled about some of the 30 items in my shopping cart in an effort to equal the two competitors' totals. If I took out the GE lightbulbs or the organic sheet set, for example, the stores' prices would be about even, some readers said.
Price surveys have shown for years that Wal-Mart is cheaper, though not by much in many cases. Britt Beemer, CEO of America's Research Group in Charleston, S.C., estimates that Wal-Mart is 10 percent cheaper, although most local price comparisons have shown less of a difference.
Still, a reader who used to be a sales rep for GE let me know that the $4 difference between compact fluorescent lightbulbs was misleading. Target's more expensive bulbs are rated for 12,000 hours of use, while Wal-Mart's are for 8,000 hours, although the packaging is identical.
I'll admit that without the bulbs, the price difference falls to 3 percent, but Wal-Mart is still cheaper on 21 of 29 items, albeit only by a few cents on most of those items. Considering that Wal-Mart has five times the buying power of Target, that's a surprisingly paltry difference.
Most readers were surprised to learn that the price differences were not significant.
It's also interesting to note that the discounters themselves pay close attention to the price differences.