Social City secretly ups the price on Mandatory Caffeination
The free option is called the Motivational Poster, an item that needs to be solicited from other Social City players via Facebook wall posts. This item boosts the speed of manufacture by 20%. The cash option is called Mandatory Caffeination, allows players to instantly complete production, and originally cost only 1 City Buck.
Yes, I say "originally" because the cost was quietly increased to 2 City Bucks within the last 24 hours. You can easily see this by comparing screenshots from yesterday's factory information and today's (see top image).