In a new Gartner report recently published they noted that tablet sales could slowdown in 2014 due to tablets moving into a mature market phase. Tablet sales being sluggish is something that Samsung also noted in their latest financial report that we covered on Tuesday. Today, Apple is going all out with a very aggressive new ad campaign offering current iPad owners the ability to trade in their old iPad for a new one and get up to $240 back in credit for their current iPad. Can you resist such an offer?