Maybe they are spreading the word on the news of a great new hangout among themselves?

Was there once an appliance like a toaster or something in that spot, but you moved things around and reorganized? Maybe the cats are taking advantage of a newly opened space?

I got a new white formica top table in my office for picture framing, and Allen has claimed it as his... like you, I can't for the life of me figure out what is so special about the new table He never sat like that on the old dining room table when it was in the room (our dining room is now my office)