I was there in July 2014. My youngest had a dance competition at Bally's. We stayed at the Paris next door. There's a hallway on ground floor between the two, so didn't have to venture outside in the heat much.
Metro pizza is on the street behind Bally's. It's in the Ellis Island Casino. Sunday and Thursdau night was 2 for 1 pizza.
2 large pizza's will cost you roughly $20, and it's good pizza. Fed 5 of us and we had left overs for the next day too.
Went to Walgreens or Walmart for snacks and drinks to keep in our room. Get away from the main strip and food prices come down dramatically.
Bought bottles of wine at Walmart for $3/bottle and it was decent stuff. Same stores on the strip are much more $$$.
We had a couple of dinners on the strip as well, but with 5 to feed, the bill was stupidly expensive for what we ate.
Have a blast !
Cheers !!!