Just an example.
Maybe we have more data than people would credit us for

I have 144 recorded sales of this chip, including 10 that beat your $150. ($150.05 if you want to split hairs )
Top price I have is $305, with an average in SU condition of around $165 and in the usual well used condition of around $98.

Look in TCR 10. It gives M ($100-$124) for average condition. I would say that is spot on, and, Jay, if you read this post, one less for you to check