My gsd has/is pretty darn healthy altho, last year she had a major health crisis in the spring. (some type of bacterial infection)..that cost alone was around 2-2500 bucks for a couple weeks worth of vet care , and she didn't stay there, she went daily for a week for med's, So that ONE occurance really put a dent in my finances (just paid it off yippee!).
She's 5 years old, and honestly with all my dogs, I can probably say I've had atleast ONE major crisis at one time or another with all of them.
If I have a year of good health, the cost isn't much. Food/toys/treats, hard to break it down with just one dog, as I have multiples. I don't vaccinate, I titer, so doing that bi annually, costs me around 85 a dog.. HW meds for my gsd are around 100 bucks a year (I only do HW /9months),,yearly checkup/hw/testing probably 150 or so for each dog. Food, again, hard to determine, I probably go thru 40lbs in about a month and half. could be off on that, I really don't keep track
Lets put it this way, just when you think things are going smoothly, something usually pops up that costs some money..