New Nook tablet due out on Monday...

Barnes & Noble's (BKS) new Nook tablet debuts Monday with a $249 price tag - marking a $50 premium over Amazon's (AMZN) much-anticipated Kindle Fire. With both devices running off of Google's Android OS and offering users similar basic features, Barnes & Noble will have to drill home to customers the faster processor and increased memory is worth the extra $50 in order to land its e-reader on holiday shopping lists.