I have to admit that from a homesteading perspective I see grapes as being mostly a luxury item. But they do have a magic all their own. The real advantage of berries comes from the fact that from most you get early rewards.
The average fruit tree takes 3 to 5 years before it gives you the first little globes of fruit. Nut trees can take even longer. A row of berries you can usually get something the first year, or at worst the second. This makes berries a great way to get some emotional validation while you are waiting for your fruit trees to come mature. While at the same time strawberries, raspberries, blueberries and black berries provide tasty treats the whole family can love.