When the 'Unibody' MacBook was absorbed into the MacBook Pro line and debuted as MacBook Pro 13, it became the new entry-level 'Pro' model.
But fans don't quite agree on the entry-level notebook into the realm of Apple Pro notebooks. Today, the 15-inch MacBooks are commonly accepted, and the Retina model is a worthy successor to the now discontinued 17-inch version. If you asked any die-hard Apple user a few years back about the 'ideal' MacBook Pro, he or she would have insisted on a 17-inch display, non-glare of course.