The first three were great, but after that they went downhill. I'm not sure, really, where the series stands at this point, because I stopped following a long time ago. I liked the way they were advancing by small tweaks each game so that they seemed like they'd just keep getting bigger and better with each installment, but alas, Spyro 3 was the last game to capture the spirit of the series, and it hasn't been the same since (again, as far as I know).

That's back in the day when it was still fun to 100% a game, when it meant something without being tedious. When it was fun to do without having some external incentive. Back when games were fun for fun's sake.