At last year's VCF the Super Sketch proved to be quite popular. Enough that I will have it up again this year. I have been making signs for the table and I wanted to make one up for the Super Sketch, only to run into a lack of good historical information. It was announced at the 1984 CES for $50, which also puts it about a year after the Koalapad, but that seems to be it.
I too can report that the Super Sketch is very popular. At MGC we had adults and kids trying it out. Several drew the whole bird picture. One kid did several of the practice sheets.
I have only my own memories from 1984-5. I knew some folks that purchased it at Unisource Electronics (Lubbock TX computer store with a catalog operation). I first played with it at a community craft/computer fair where they had the C-64 version.
The one in use at MGC came from a nice TI collection in Wisconsin that I bought in 2010; the owner had a lot of Tenex catalogs.
Chris Bobbitt reviewed Super Sketch in Micropendium, Jan 1985.
The review shows a price of $59.95 and adddress Personal Peripherals, 1505 S Green St, Longview TX 75602.
There is a Unisource ad on page 20 selling it for $44.95.
The review is all As, acknowledging Super Sketch shortcomings, while not calling it a dead end because it can't write to disk, or print.
(Who solved printing, by the way?)