You present a persuasive argument for the abandonment of the 5-paragraph essay and suggest a new format for presenting an argument... However, you did not provide much information on what is expected to go in between your introduction and conclusion? You suggested this format opens the essay to compare/contrast, cause/effect, analysis, etc... but how do you suggest students structure an essay with these approaches in practice? Any piece of writing needs some structure and main ideas that are then supported with various pieces of evidence (whether you are writing a historical thesis or a persuasive essay)... If you are abandoning a "main idea followed by supporting evidence" format, what do you propose should take its place? Or perhaps my understanding of the 5-paragraph essay you are speaking of is incorrect?
For a premium product, more expensive components and/or designs are used (. a switch + some extra circuit traces). The additional production cost of these may only be a few cents per unit, but they allow the products to be sold at a higher price because of the differentiation. Examples beyond the write-protect switches include things like speed class on SD or MicroSD cards – people will get very excited and snap up cheap cards on sale, but will never even consider whether they’re class 2, class 4, or class 8 (or higher) because most of the purchasers A) don’t even know that those options exist or what they mean and B) don’t care. On the other hand, people looking for speed (. professional photographers) are going to be purchasing class 10 cards and nothing but, and they’re going to pay a premium for them.