Yes, the BoB chips are generally in new or near-new condition -- both the $1's and $5's.
I didn't read through the previous links, so I apologize if this was already covered.
Here's some data points to consider.

1. Most of the Virginia City casinos only had 1-2 tables of BJ (plus slots) as a tourist amenity. The tables weren't even open at some hours. (Of course, there aren't any live games in VC anymore, for quite some time.)

2. The Order Card for the $5 BoB chips is shown on ChipGuide. It says order date was April 1, 1965 (even though the dates issued for $1's and $5's is listed as 1962 on ChipGuide).

3. The $1 Silver Dollar "Cartwheels" shortage began in 1964. Nevada Gaming Commission issued approval for Tokens to be minted and used at casinos in August, 1965. See link from Dan's Tokens page:
http://www.casino-tokens.com/TokenHistory.htm

4. According to note on BoB webpage on Chip Guide: "No tables since the 1970's".

Now, my speculation: BoB may have used Cartwheel $1 Silver Dollars through the early 60's. When the Cartwheels started disappearing in 1964, BoB ordered $1 and $5 chips in April, 1965.
Used the $1 chips a bit, when the 1-2 tables were open, dealing low-stakes ($1 min.?) BJ, with the $5's for color-up (at most). Then discontinued live BJ completely by the (early?) 1970's.

Some assumptions there, but may explain the excellent condition of their chips. Regardless, they are classic C&J-mold chips to have!