Yuck.
I have picked up a couple of these in the past couple of years in 2nd hand stores (always the original ones with arrows in inverted "T" not the "+") in truly nice condition and gotten about $15 + shipping on ebay. But they never sold right away, I think that there is a small but limited market for them. There is an identical Dell-branded version.
I bought one myself, back in the late-1990s, but never could get used to it.
