Well, name some. I use the suckers every day and they're one shot deal in the telephone world. Paracord and rope would be better in outdoors. You can't run back to the storeroom for more zip ties if you run out or they're not right size for the job.
"Some are made with a place you can press to release. The rest can be opened with a small, flat blade - like the tweezers on a SAW or very small screw driver."
You mean a SAK? Yes, you can pick them open, but what happens when the little metal piece breaks?
Just asking. Every site has people singing about zip ties. But, nobody can tell what for.