Urban legend has it that they took cash down to $20, before the first RS, but I am unable to find a link to support this alleged legend. But I swear on a case of beer that this may have been mentioned at ribbon cutting ceremony.
A post-RS world generally is influenced more by what occurs afterward than it is from the RS itself. And that would be true if it happens here too. I have seen some go down and some go up. More go down but that is a measurement, not a cause.