Standards versus flexibility
Standards versus flexibility is an age-old tradeoff. Standards make it quicker to understand something because it follows known patterns/guidelines. If flexibility gives only minor improvements over the standards, then standards are generally preferrable. An example is a device that has a proprietary or hard-to-find battery because it allows the device to have a certain shape without using a smaller battery capacity. But the downside is that we cannot readily replace that battery because it is not a standard.
It would be nice to see a "killer example" of the flexibility of Lisp that an Algol/C-like language cannot do nearly as smoothly.
