When to buy a flash drive, an external hard drive, or an external SSD. Answer Line By Lincoln Spector, Oct 13, 2014 7:03 am PDT. Image: IDG.

Best Buy has discounted the SanDisk Ultra 256GB USB 3.0 flash drive again—the price is currently down to $55. The company claims this deal is $145 off the sticker price, but that’s not quite ...