Price of butter in Buffalo?

I always stop by Walmart (or Walgreens, Tops) when I go to Buffalo. I bake alot and like the butter in the USA as they cut and package it in sticks. In Toronto, it costs between $5-7!

1. Can anyone tell me how much a block of butter (cut and wrapped in 4 sticks) costs (approx)? I plan to buy a lot to freeze.

2. I'm not sure what the more popular (best) brands are (I'm thinking Land O'Lakes)?

3. Which grocery store is relatively cheaper?

Thanks!