I pay more attention to Intellivision then to Atari, but I've always liked the look of the 6 switch system. I'm looking to replace my 2600 with the broken game select switch.
Until I started looking on EBAY, I had no idea that there were a couple different 6's.
I found a boxed Light 6 (now I know how to tell the difference) for $50 locally but I don't know if it's worth paying that much.