Best option could be to buy a faster version 32GB+HDD, replace HDD with SSD and use HDD as ext. backup. SSD read/write is cca 2x eMMC, but much faster then HDD. Following, with cca 80 Eur additional costs (128GB SSD) the storage problem is solved and the overall performance is very responsive. See instructions: http://omglaptop.com/tablet/asus-t100-install-ssd-replace-hdd/
Secondly, I'd like to mention that all(!) 8 inch tablets (Dell, Lenovo, Toshiba, Acer, Asus) are difficult to use as desktop replacements since they have just one usb port simultaneously used for powering (unfortunately, a separate power connector is missing and docking is troublesome). Only Toshiba/Acer has available hdmi, only Lenovo usb 3.0, and of course, without keyboard and docking. Moreover, desktop work on 8 inch tablet is quite stressing. If we assume comparable weights of 10 inch(550g) and 8 inch(450g) tablets, then Asus T100 is very versatile and cheap option on the market. Thank you, Asus :)