Thats true, but seriously three numbers in a row you see almost all the time? Three numbers is not that easy to see in a row! I noticed though I had the #5 for a while and saw it all the time and the 274 faded away for a while until I started paying attention again.
I think you have alot there with what you said, once I saw 274 a few times years back I payed attention more and more and the more it came, interesting.