http://m.traderjoes.com/fearless-flyer/article.asp?article_i...

http://thebillfold.com/2013/08/price-comparison-battle-safew...

http://www.checkbook.org/interactive/spmkt/other/t/article.c...

Trader Joe’s received higher overall quality ratings than Dominick’s and Jewel-Osco, and charges similar prices.

I could go on, but I guess you can do your own research. Seriously, their prices are on average, lower than most.