I bought Syndra with 6300 IP day one, right after someone asked me if I bought her and I was like "just a sec". I haven't even tried her in a bot game though. But she's THERE, if I ever WANTED to.
Also, one of the most depressing things ever is someone I know, who always seems sort of confused about the game, only recently got to level 30, played almost exclusively Lux (maybe some Janna), started ranked games, and due to the placement matches and 40 elo gain, is now like 2 games away from gold. I don't know whether he's truly better from not playing much than I am after 5 million matches, and I just never learn anything from playing (quite likely), or if he got lucky with decent teammates in the placement matches to immediately get gold after 8 games or so. Either way I'm sad. I don't think he even watches streams or guides or whatever.