Joe Rossignol, MacRumors:

Apple today increased its trade-in values for select Mac models released in 2009 and later. In partnership with buyback company Phobio, Apple now offers customers up to $2,500, compared to up to $1,500 previously.

Want to get a sense of the trade-in value for your old Mac? Head over to the Phobio site (that’s Apple’s trade-in partner).