Uneven Inflation -> Higher Quality
Explanation of title first: I have noted that because some kinds of food is going up at a much faster rate than others, sometimes, paradoxically, the "cheap substitutes" end up costing more than higher quality (and formerly more expensive) versions. This is especially useful with items with a longer shelf/freezer/refrigerator life when you can take advantage of sales. I'll mention a couple of products to get the ball rolling:
Cheese slices: OK, I formerly would frequently buy "pasteurized processed cheese food" (aka cheese with skim milk solids added) in pre-wrapped slices as a condiment. Anything less than $4 a pound was fine by me. Now, you can only buy "pasteurized processed cheese product" in pre-wrapped slices (although Kraft was selling p. p. American Cheese pre-wrapped for a while, although it was $5-6 a pound). These days, on sale, I can buy blocks of cheese or shredded cheese (generally cheddar or mixes), frequently at $4, and often enough down to $2-3 a pound. The shredded, in particular is very easy to use on sandwiches.
Hot dogs: Even the off-brand crap is almost always $4-$5 a pound. On the other hand, the Johnsonville and Hillshire farm "sausages" are often on sale at $2.50-$3 a pound (well, a bit more now that they've moved from 16 ounce to 14 ounce pacakges). These freeze very well; I wrap each one in a small piece of waxed paper.
Anybody else finding low quality stuff is passing higher quality equivalents in price, and switching over to the less expensive, higher quality?