Upload & Sell: On
Older thread, but I think I've found a relatively compact local backup solution that will work for me. Just ordered this as a $183 refurb (discontinued in the US) with full warranty from their outlet store:
Lightweight, thin and small (vs any laptop/netbook/Surface), full desktop Windows 8.1, long battery life with mobile charging, expandable storage via microSD, and a micro USB 3.0 port. This is the only 8" Windows 8.1 tablet that uses USB 3.0, though it seems you need Lenovo's own $10 OTG cable for it to work (OTG + charging is $15). Slap on a hub with a card reader and SSD, and you're ready to transfer files as fast as the card can read them!
The tablet's also useful for tethering with Windows software, viewing all photos and videos, and doing quick edits (though the screen's only around 85% sRGB). Hope to have it in hands late next week/early the week after to do some testing.