The real reason i mentioned steam was as an excuse to get the 5$
But yes, you can get steam gift cards here, although not in any supermarket, just in very limited ones, a few per state i think.. except in some, as far as i know (depends on how much urban your area is)
Mostly my friends buy gift cards online or directly use cards or net banking to purchase games or refill steam wallet.
I am not worried about purchasing from steam. I am worried about directly using my card number for the purchase, which is mostly just me being paranoid. But the fact is stuff here is easily hackable and iam afraid in that sense, if iam using a random debit card, at least my real card info will not get into the wrong hands.
Basically its not steam that worries me, but losing important data through pc, wifi, isp or other stuff.
The recent update on the WAN show about NCIX server data mishaps makes me worry more.
As for the Banks, thankfully they do respond well to stolen money and transaction mishaps, and usually get you the money back. Dunno how much proactive they are though.
As far as i know, majority of cards are based on the magnetic stripes, chip system is being slowly implemented but awareness of card holders and the infrastructue for the chip system in ATMs is still not wide spread. But it is available, if you have access to it.
I have no idea about RFID. Never knew it was also implemented in Bank cards until you mentioned it.