Just thought I'd share my experiences in case you want to pick up a new tablet. I turnover my gear pretty frequently because I'd rather sell something 2 years old or less that still has some value, rather than zero value. Also, from mid-November to New Year's Day are the best time to buy.
iPad Mini Retina
Sold a 16 month old iPad 2 16gb and picked up a iPad Mini Retina 16gb. Beautiful display on the Mini Retina, but it almost felt flimsy as it appeared to flex a bit in my hands. No problem for my bifocaled eyes to read the display. Battery life didn't appear to be better than my iPad 2, though no formal testing was done.
Target had an attractive deal on the iPad Air 16gb in mid December, making the leap from the non-discounted iPad MR to the Air only about $45. So I returned the iPad MR and bought the iPad Air.
It is fast, light, thin and the screen is remarkable. If you zoom in on original resolution photos, you can see every scratch and ding that the original photo captured. I don't know if I would part with 5 Ben Franklins for it, but IMHO, it was worth the $200 to upgrade from the iPad 2.
Google Nexus 7 HD 2013
I picked one up yesterday as I had a $15 gc, $35 in BB rewards, and Best Buy has them for $199, $30 cheaper than anyone else. I am evaluating it to decide if I want it as my workshop tablet/device, because at under $200, any damage to it would not be catastrophic financially.
The Nexus 7 runs the latest version of Android. It is thin, light, and narrow enough to one hand it. The Qualcomm Snapdragon runs fast and the screen is bright and crisp. Overall it has a quality feel to it and is much more capable than the Samsung Tab 3 7", which only has 8gb of storage.
I like the Nexus and have figured most of it out, but not sure I want to be part of the total google infrastructure/cloud, in addition to the Apple universe. Furthermore, with the reduced width, the fonts get pretty small IMHO, even compared to the iPad Mini Retina.
There have been some incredibly cheap deals on Toshiba Windows 8 laptops, for about $250, but I am of late Mr. Anti Windows, too many interface changes. Also, for casual Internet reading and Bikeforum contributions, a tablet works fine.