Remember that professionals can be professionals in fields that don't require a lot of processing power besides, Apple's 13" Macbook Pros were never particularly powerful, and they've always been dual-core. It's just a form of marketing to upsell people from the Air by making the name sound better.
Exactly my point. PR bullcrap, basically.
Now, yes, pros can still work on limited resources, but I'm pretty sure that deep down, they're trying not to yell obscenities when faced with limited resources. Besides, limited resources do really cut down one's productivity.