I seem to recall dumping about a hundred bucks into Goddamn Shenmue, but as far as I know, they never actually started production on Shenmue 3, so I guess that doesn't really count.
I remember being pretty pissed when they cancelled the Half-Life Dreamcast port. I had that sucker preordered almost from the day I bought my Dreamcast. Then they delayed it again and again, up until the point the DC tanked. I remember Randy Pitchford did an interview on IGN, reassuring everyone that Half-Life was coming out for DC despite rumors that it might not, and then I got the email informing me that bla.. blaa..