If you're looking for a cheap way to get your multi-monitor setup on, you probably couldn't do much better than the $50,
dodgy-brand, 17-inch LCDs being offered by random e-tailer HCDI Trading. Of course, there's no such thing as a free lunch, and that rule certainly applies here, with this lowly-spec'ed display (12-millisecond response time, 500:1 contrast ratio, 260cd/m² brightness) lacking so much as a base -- meaning that your Matrix-style array will be wall-mount only. Reassuringly, HCDI claims that these units are "not stolen" and goes on to admit that "we need the money" as two of the top ten reasons you should buy their product. Also, shipping will add another twenty-five bucks to your total, which is still actually a pretty small price to pay in order to, as HCDI puts it, "further shame your Etch-A-Sketch."
P.S. 1,000 experience points to the first reader who can nail down the branding on this sucker.
P.P.S. Ding ding ding! We have a winner: meet the discontinued Sharp LL173CB. Experience points for all!