hey those big time store places actually use lots of corn syrup and sugar and things from concentrate to add alot of flavor with a little product.
try this (stop me if i sound like a snob) take the amount of strawberries you want to use put in pot, sprinkle the top with sugar bring to a boil (berries have alot of water in them it will come out) then turned way down to a low heat for 3 min. cool that down then add that back to your blender with ice drizzle corn syrup over the ice and a pinch of salt (brings out sweet flavors as well as savory) then blend it up :D