What’s the going rate for copy of the preston’s guide and where’s the best place to purchase?
Search on Google. I’m sure buying it online will save you some money. IMHO
I could be wrong, but think it is in the $60 to $80 range.
AHIT shows they sell them for $89 according to google search.
Go Here
You may also want to read this thread…
http://www.nachi.org/forum/showthread.php?t=9563
I got mine on ebay for about $35.00