Sure. You can buy a lappy with a 1 TB hard drive at Best Buy for under a thousand bucks. Unless there are graphics involved email takes up very little space, it's mostly text. At 2 KB apiece these would only occupy 1.3 GB. At 10 KB per, which is a high average for email, 6.5 GB. You could put that on a cheap flash drive.
And sell it.
Multiple times.