Enough with this Tetris crap. A cursory look on my pc and I've found piccies I stole from tinterweb in Nov 2005, 10 months before PS2 collection. Cursory look. And I'm sure those piccies were not put online that day either! I've known about it for 20 damn years plus lol. If only I could post a srcreencap as then you'd see both piccies and the property box with date thing, but it no worky for me ;(. Ah well.
I do agree with your general points though. It's mostly the difference between the number of manufactured copies, and the number of known copies. Could well be more 'insert shittingly rare vg item' out there. Not every collector does forums. Not many of those that do, divulge all they have.