I saw a trailer for Spyro 1 on TV when it first came out.
That is what cured me of a case of Nintendo-fanboyism that had clouded my mind since the day I'd aquired my beloved SNES, nearly a decade before. (With some help from the clunky, oversized turd of a controller that came with the Nintendo 64 I once rented from my local video store.)
I eventually bought a PS1, just in time to play Spyro 2. I have never regretted it - especially after I noticed an interesting difference between the advertisements for the two consoles of the day: Your average PS1-related commercial would announce some new game, which inevitably LOOKED awesome (and usually was), while any N64 commercials would usually just boast that the console was now available in some new, fancy color!
The Spyro games, it turned out, were just the tip of the iceberg. I spent countless hours playing Crash Bandicoot 3 and MediEvil, and Final Fantasy VII introduced me to the glorious world of JRPGs. But still I must say, my single happiest moment of the entire PS1 era was the day I heard a rumor that Spyro 3 was coming out.
Yeah. The Spyro games changed my gaming life for the better. If it hadn't been for Spyro, I would probably have bought a N64 despite its flaws. (Fanboy, remember? I might never have bought a single non-Nintendo console to this day.) I've had a lot of fun on the PS1, and later on the PS2 and PS3, but the Spyro trilogy remains a highlight.
I still play them sometimes.