DP did have a lot of nice mini-arcs here and there, and they did a fantastic job on the Gym leaders.
While I personally didn't enjoy DP as much as some of the older arcs, it definitely did have far better writing and continuity than any previous saga. The battles have also reached their most impressive of this saga of any arc.
The thing is I just don't feel like following another 200-ep saga. Ash doesn't really have a personality anymore, TR are stale, but at least Brock leaving is a godsend.
The worst part about the series, is that the entire main cast has just become so dull. Ash and Brock were kept way too long, and TR isn't any better. Shame.