Trader joe's vs. wholefoods?

hello, 1. does trader joe's have membership/discount card the way ralphs and vons do? (ie: you show them a member card at checkout and get a discount that kind) 2. i've heard trader joe's is cheaper than wholefoods. a trader joe's just opened near my place. anyone know why? does... show more hello,

1. does trader joe's have membership/discount card the way ralphs and vons do? (ie: you show them a member card at checkout and get a discount that kind)

2. i've heard trader joe's is cheaper than wholefoods. a trader joe's just opened near my place. anyone know why? does wholefoods have better quality or something?

thanks!
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