Final Fantasy. Loved it on SNES and was pumped for what they could come up with on the N64. I saw the Square tech demo and I was super pumped. Then they sold out and went PlayStation and I was heartbroken.

I was disappointed when Ys Seven and Memories of Celceta were released as PSP / Vita exclusives. Hopefully they'll eventually get ported to PC or something else, otherwise I'll probably never get to play them.

I remember when RE4, REmake and RE Zero came out on Gamecube, and even before that Code Veronica on Dreamcast (though both CV and 4 ported over to PS2 fairly quickly). Considering the first three were on PS1, and how huge PS2 was right from the get-go that all RE games would obviously make its way there. My dislike of Capcom really began there I think, along with abandoning Mega Man Legends and twisting Breath of Fire into the nothing it is today.

I remember being frustrated for a long time at Chaotix and Sonic CD being relegated to dead-in-the-water expansions to the Sega Genesis.

There have been multiple instances of a series I like suddenly branch out into handhelds I don't own. Castlevania, Final Fantasy Tactics Advance, that Final Fantasy 7 prequel, Resident Evil Revelations & Parasite Eve 3 are the only ones I can think of off the top of my head.

Ah, also forgot Kingdom Hearts. That got ridiculous real quick.