bread so cheap at Walmart

Please someone telling me I am just being negative. I have started worrying about low prices at Walmart, because of hearing about their trade practices. Today I noticed the usual $2.78 loaf of multigrain bread that is my favorite, is reduced permanently to $2.50. I am wondering who is "taking the hit" for that 28-cent reduction. The bakery companies? Other local grocery stores usually have that bread for $3.50 or so, but often **on sale** at $2.50. Is Walmart's reduction an effort to smack the other grocery stores, so that we won't go there looking for bread on sale for $2.50? I've begun seeing the interconnectedness of everything in this economy. Breyer's ice cream is often on sale at other groceries for $2.50 as well, and now Walmart has reduced their Breyer's permanently to $2.50. Once I heard a Walmart deli manager, the husband of a coworker, talk about their strategy not just to compete with the (XYZ) Grocery Store deli section, but to "put it under." I wondered if his aggressiveness was reflective of Walmart policy as a whole. And where does that leave me-- Making tiny bits of money and having to go to Walmart for the cheapest prices in town.  It's one time that I have mixed feelings about seeing grocery prices go down.