It is a big deal. Crockett was right -- the central issue comes down to whether or not Private Monies are being used to fund Public Displays, and whether or not the Law has established a Legal Prejudice in favor of one religion, against all others.
Let's say a predominantly-Buddhist community in America were to post the Noble Eightfold Path in the foyer of their County courtroom:
And let's say that they did so with the receipt of Private Contributions, according to a Vote of the Community, sequestering none of my Private Property, and instituting no legal prejudice whatsoever against me as a Protestant Christian...
You know what? I'd vote against it as a Corporate Owner of Public Property.... and then, I wouldn't really care. It has not harmed me in any way. I may not agree with their "community standards", but if they have not Established an Unequal Protection of Buddhists to my detriment as a Protestant Christian -- then I have more important things to worry about. Making a Federal Case out of it, makes a Federal Case out of everything. And if Buddhists bothered me that much (they don't, really), I have the freedom to move away -- better by far than calling down the Might of Federal Government, UBER ALLES.
Methinks thou dost protest too much.
The largest church services in the nation during the presidencies of Jefferson and Adams were held every Sunday in the House of Representatives. Some of the men who wrote or ratified the first amendment were there. No one claimed the services must stop because the constitution separates church and state.