As others have said, Pokemon in general is going in an uphill direction. The games are more popular than they were in the RSE era, and HGSS is certainly going to raise the bar even more. The TCG is still going strong, and attendance at tournaments has grown in the past few years. Movies are more high quality and are a least mildly interesting now, as well.
The anime, however....now, they're just repeating the same ideas they had back in the classic days. Back in the Kanto and (sort of) Johto episodes, they were good. However, as GS wore on, the episodes were starting to lose quality, and by the time mid-AG had arrived, episodes were terrible. The anime hasn't gotten much better since then.
Pokemon looks solid overall, but the anime is certainly hurting the big picture.