I've read the replies that you've already given about construction, but I was wondering if each PVC pipe that held the pots were anchored into the ground, or was it just the supportive frame that was anchored?
My goats would love to get ahold of my garden area, but their fenced pasture is on the other side of the property for that very reason. If they escape, they've got a bunch of ground to cover before they get to something they can damage. Luckily, they have lots of room and are fed more than they really need, so they don't ever try to escape. ;-)
Just a big WOW on your strawberry patch! This is something I will have to look in to doing!