I came from Pokemon, Mario, and Zelda into Smash 64 when I saw Pikachu, Link, and Mario hoppin' around on a random TV screen somewhere. Then learned that all these other Nintendo series existed through it. Then I played most of their games and repeated the process with newcomers in Melee. I branched from a handful of games, to Smash, to a whole lot of games.
Brawl was the first time that I started wanting characters I already knew about added, as my list of games expanded far past those in Smash at the time. Snake came out of left field, but damn did it make me happy. He was a character I loved but never even half expected to ever be in Smash. I actually expected Sonic. I played a lot of Sanic games and knew how huge his fanbase was. But by the time Brawl picked up, Sanic was dying with '06 and I stopped caring. His inclusion barely phased me at the time, definitely not nearly as much as Snake. MK was pretty much the only other newcomer I cared about joining. Everyone else was meh, but Snake overshadowed everything else so I didn't care. I didn't care about the cut Melee veterans too much at the time either, but I came to love Roy and Mewtwo later on. THEN I missed them. Lucas and Pit got me into their games respectively though.
Now in 4, I cared about pretty much no newcomers except Mega Man, and somewhat Little Mac. Everyone else was lackluster, disappointing, or outright ticked me off for getting in over other characters I felt more deserving (like Snake). Even veterans getting BACK in 4 ticked me off, because they got in before Snake and I felt they deserved to be cut far more than he did. I figured both Lucario and Ike would get the Mewtwo and Roy treatment, and when both were announced, it just made me grumble under my breath about how there's still no Snake announced. Ialsodespiselucariowithallofmybeingbutthatsnotthepoint. The difference with this game and the others is it introduced me to nothing and took away what I already liked. My favorite character got ripped out, and then I was presented with a big list of new people I didn't care about, which made it sting twice as hard. I came into 4 with no idea who to actually pick anymore. I sorta just defaulted onto old characters I played like Pikachu and Sheik, but the void could never be filled. And it's sort of sad that every new character I like being announced for 4 is a cut veteran. I actually like Mewtwo, Roy, and Lucas more than Ryu and all the new characters combined. But a Snake announcement would invalidate my care for the entire roster, and I reallyreallyreally hope the courtesy they're giving cut veterans will be extended to him too.
And if Wolf, or any of the other ****ing cut Melee clones/pokemon get in and NOT Snake, I'll set Sakurai on god damn fire.