I was planning in replacing my current mini (a 16G w AT&T) with an iPad air. But after reading reviews of both devices, I may just keep my current mini and get an iPad Air. The current mini will be a good travel device for a couple of years due to the weight and hotspot capability, along with a strong battery. The iPad Air appears to have a better battery and processor than the retina Mini and will likely last several years. I am thinking about going big on Storage (maybe 128 gig). Also thinking about adding a Kindle Paperwhite for ultimate portability for books only...