I hit 1160 points today on Black (I'm a day behind on White, since that one caught the registration-stuck bug) and lo and behold, Diglet gave me a new garden row.
I'm thinking as more time goes by, there will be a lot more profitable sharing and a lot less oran berries, as people build up their berry collections. I'll definitely still be putting out some good ones. If nothing else, the oran berries will go toward my house upgrade without wasting a planting spot. XD