Naw. I think it's so cool and I bet more often than not you enjoy the weekly effort rather than consider it a burden. I guess it would be time to stop if the ratio of burden:fun got higher than 1:1.
I agree, it is still fun. I love O! So the weekly streak shall continue.
It is also fun when you get to run on maps of places like at Winterton (South Africa) and Punta Arenas (Chile) to keep the streak alive.