What do you mean by top-tier Choice or Prime?
What do USDA grades mean? Beef is graded according to a quality scale—from best rating to worst, the scale is Prime, Choice, Select, Standard, Commercial, Utility, Cutter and Canner. Only Prime, Choice and Select are sold to consumers as raw meat. All cuts of meat are available in different grades. The cut of meat determines where it comes from (see the diagram below for information), while the grade of meat speaks to the quality.
The top USDA grade, Prime, makes up only 1 - 2.5% of all beef processed in this country. The inspector considers many characteristics when grading for Prime, but even discriminating consumers mostly look at marbling, that network of fat that traverses the meat. It's the marbling that gives Prime beef the incredible rich, juicy, tender flavor and texture which speaks to the quality of excellent beef.
Choice is the USDA grade below Prime. About 45% of all graded beef is called Choice, so you can imagine that there is a huge range in quality within the grade. We only carry top-tier or 'high' Choice, the best you can get without being Prime (vs. 'low' Choice which is only slightly better than Select—and what grocery stores carry.) Select grade is the lowest of grades available to consumers. It is very lean and lacks marbling, which makes for a less juicy or tender piece of meat