Buy Amazon giftcards at grocery stores with Chase Freedom CC - get 5% back

I normally don't get too excited about the 5% cashback specials offered by credit cards at targeted store types - 5% usually not worth the hassle of juggling cards. However, Chase Freedom cards now give you 5% cashback on up to $1500 in purchases between April and June in grocery stores. Normally, not a big deal but you can buy gift cards in the grocery stores . I find that I am buying more and more on Amazon and buying cards to set up a $1500 balance is not a hardship - I actually just spent $1700 on an LG TV set. Some stores stock $500 Amazon gift cards so its pretty easy until the Chase fraud squad starts sending you texts, emails and phone calls

https://creditcards.chase.com/freedom/activate.aspx?WT.ac=DSO14049_banner&jp_aid=DSO14049_banner&jp_avt=38958&jp_ai=&jp_aoc=CHASEFREEDOM&WT.mc_id=2012_Q2_QCEP&jp_con=CHASEFREEDOM.MyAccounts.Sec_banner&jp_lid=000014049&jp_oid=000035116&jp_mep=18441&WT.pi=/MyAccounts.aspx&WT.pn_sku=Freedom