A huge disappointment is...

When Microsoft was able to beat Sony. Even when Sony makes its comeback, it's still a disappointment knowing that Microsoft beat them at one point, even if they DID have a year start and Halo Fanboys.

Also, when SQUARESoft became SQUAREEnix, then Nobuo Uematsu quit them, then Hironobu Sakaguchi quit them to make 360's Exclusive Mist Walker... goddamn.

sonic leaving 2-d

when they started making crash bandicoot for xbox and ps2.

o yes and starcraft ghost

Starcraft Ghost... any StarFox after SF 64 and any "Age Of..." after Age 2...

Getting to the bottom of Advanced Dungeons and Dragons:Treasure of Tarmin and finding out it just loops back to the top....

 I may be dating myself with that one ;) 

that the ps3 wont reach the high lifetime sales it was supposed to ='(

seriously tho, its dissapointing everyday, i see myself playing games because of the graphics, and not the actual game itself.

but now that we have the high def, its almost impossible to go back.

SMG, excited for the Wii version since i loved the Wii. I played and beat all previous Marios and then i played this Mario game and stopped after a few stars and haven't touched it since.

the death of the MVP baseball series to 2k exclusivity.

halo 2

For me, Half life 2.

It was so hyped and i couln't wait to get it,but i hated it.