Oh yeah, by the way, both games clearly didn't fully meet demand: I had a heck of a time finding ICO in NYC, and this was over two years ago. I bought 3 copies of SoTC once it went down in price because of this, though the greatest hits definitely helped to meet continuing demand for that game... even so, the value of SoTC on the used market has held a lot higher than most games.
And good luck finding ICO new -- in the past few years the only place I've seen it has been ebay for 80 bucks or more and amazon for some insane amount. Personally I got my copy from used one of the twenty or so gamestops in the city, and even that was hard to find. So I'm sure the game could have sold some more with another release, and people like me wouldn't be depending upon the used market.