That’s usually my angle too, but, on these gadgets, like I said, the reviews are all over the place and no units or brand seem to stand out. None have a particularly high number of 5 star reviews, either, but the 5 star reviews are generally fairly detailed and convincing.
I may just buy one locally, perhaps the Lowes unit, and see if those tips really are all that fragile before I put it in the ground — and also not try to drive it into hard clay! That makes a return if needed more practical.
Need to fix that clay.