Still, I think it's quite awesome that the kids can fight as digimons. But I don't remember much of the stories of the other seasons except DA 01 and 02 anyway... (will be put on my rewatch list :D)
It's just the thing about follow up series that they are mostly somewhat... really... odd, I guess?! Like Yu Gi Oh!, Pokémon, Dragon Ball (never liked the last two, though).