I started off using the cheap orange plastic trowels.
I live in northeast Ohio and do most of my day-hiking here and in western PA. Most of my weekend trips are in western PA as well. A lot of roots, rocks, and hard-packed clay are the usual digging situations for me. The plastic trowels don't last long. They're cheap and easy to get, but when you've got to go, you don't want your trowel to break.
I still have one that's cut down that I use for day-hikes. I'll use it until it breaks.
For weekend trips, I've switched to the QiWiz Original titanium trowel. Mine weighs 0.455 ounces. It's a little heavier than listed, but I suspect that it's because it has a little thicker rubber coating in the handle section which I greatly appreciate for the hand comfort.
For me, an average of 3 plastic trowels per season = $16.94 compared to $31.18 for lighter weight, root cutting, multi season use, and reliability is a no brainer.
Other than a few scratches, my titanium trowel still looks new after about 12 uses, so I'm already half way to justifying the price. I suspect that It'll be less expensive overall in the end + it's lighter and I didn't have to cut it down to size. An other bonus for me is that I'm supporting a cottage company instead of Walmart or Dunhams.
As for, worrying about digging a cat-hole in a previously dug spot… I've only done that once. It was in an ARMY training area that saw regular thorough use.