Straight from the Autometer price guide is $603.43 retail(which no one pays) and jobber price is $452.57(which is the average price for a Autometer dealer), a good price on these would be $399.99.
I agree with BO94ZA4. I bought mine when SS Inserts had them on sale for $399.95. However, I just looked at their web site and did not find them listed now. I can tell you that I love mine and they really look good day or night (but especially at night!). The installation was not that hard, once you were able to remove that stuborn head light switch... I have people ask me about these gauges all the time once they see them.