The expectation is that a 2014 model will perform at least as well, if not better than, a predecessor model from 2013. That's a perfectly reasonable expectatio

The expectation is that a 2014 model will perform at least as well, if not better than, a predecessor model from 2013. That's a perfectly reasonable expectation to hold, as well. One really shouldn't end up worse off (for whatever reason) merely by buying a more recent model, especially when it's a computer that's being purchased.