Once in a blue moon? This is the second time.
Effectively, this is Nocturne's third print.
That's what Atlus messaged back to that one guy.
And it is once in a blue moon, if Atlus reprinted lots of games it would make no sense for people to sell and buy Nocturne at such high prices.
The second reprint was done a couple months after the first print IIRC, after that the only way to get Nocturne new and sealed was on Ebay or something for a couple of years.