Did your interest drop off after a certain game?

[-FiniteZero-]

Sometime around Mega Man Universe, I started losing hope for the classic series. I still feel rather doubtful for there ever being a Mega Man 11.

[*Alice]

Calling it betraying is quite wrong. They always had games on most major consoles. And Megaman 8 and X4 weren't even PS1 exclusives, because they were also released on the Sega Saturn (So was X3, even).
And Capcom didn't even become popular because of Nintendo, but because of their Arcade games (Street Fighter and 1942, for example).

[The Killer Nacho]

Calling it betraying is quite wrong. They always had games on most major consoles. And Megaman 8 and X4 weren't even PS1 exclusives, because they were also released on the Sega Saturn (So was X3, even).
And Capcom didn't even become popular because of Nintendo, but because of their Arcade games (Street Fighter and 1942, for example).

Correct me if I'm wrong, but not only did Capcom stray from the Nintendo universe in terms of Megaman, they have relatively recently did the same for Street Fighter. SFII HD Remix? SFIV? This ties in to my on topic response: I kinda dropped new school Megaman and Street Fighter due to them straying off to consoles I would never otherwise purchase (XBox One, PS4...). If you're looking for a certain game, X6 reflected any rays of hope for the series into players' eyes.  Street Fighter IV was so refined and revamped, but unfortunately available on EVERYTHING but Nintendo consoles, so I predict a lack of Street Fighter for Wii U as well. This makes me quite uncomfortable in both series going forward  

[Rozark]

Street Fighter IV was so refined and revamped, but unfortunately available on EVERYTHING but Nintendo consoles

The wii's lifespan was approximately dying I believe when it came out, so that would explain why it doesn't exist there.
The 3DS however has a version of SSF4.

[ZeStopper]

I kinda dropped off Pokemon, but not entirely

[The Killer Nacho]

I just lost interest in Pokémon a badge or two into black. They've starting milking the cash cow to oblivion the same way they did the X series *cough cough X6 cough cough* (less than a year of development! Buy now!).