[bitwize]

In business this is known as the build/buy dichotomy. Best practice is to focus on your core competencies. Meaning buy unless the available solutions do not fit your needs or are cost-prohibitive.

As always, it all boils down to cost. "Code it yourself" may make your programmers happy, and give them interesting work to do, but if it costs the business a big chunk of money they could have saved or put to more profitable efforts, it's a very bad idea.