I can’t say that I have ever seen two KIM-1s for sale on Ebay in the same week.
http://cgi.ebay.com/170539615545
This is one of the newer Commodore KIM-1s as you can see the Commodore MOS logo.
From my previous post about the KIM-1 in case you missed it.
The KIM-1 was developed by Chuck Peddle. His engineering team designed the 6502 CPU, and Chuck designed the KIM-1 to get engineers to start using the chip. What happened was that it was purchased largely by hobbyists who found it’s powerful CPU and low cost attractive.
The KIM-1 was released as a kit in 1976 for a price of $245.00. I estimate this auction will exceed that by $100.
Early KIM-1s have the MOS logo on it. Later KIMs (I believe starting at Revision D) have a Commodore-MOS Logo on it.
While not rare, the KIM-1 is highly sought after by collectors. I myself am the happy owner of a MOS KIM-1. The KIM-1s historical significance make it such a wanted item.
MOS 6502 Trivia:
The MOS 6502 is probably one of the most famous CPUs at the time. The 6502 was the CPU for so many products. It was a powerful chip at a low price and because of this it was used in some well known machines:
The Nintendo Entertainment System used the Ricoh 2A03 which used the 6502 core.
The CPU is also listed as one of the 25 microchips that shook the world by the IEEE.
http://spectrum.ieee.org/semiconductors/processors/25-microchips-that-shook-the-world/0