I used to say tubeless was overkill for my shop, then a goathead thorn changed my tune on a Tuesday ride
I ran tubes on every build for 12 years because they are simple and cheap and I can patch one in 90 seconds flat. Last Tuesday a guy named Dale brought his gravel bike in with 14 goathead punctures in the rear tire, all from one ride out near Folsom Lake. He had a tube in there and it looked like Swiss cheese. I set him up tubeless with 60ml of sealant, and he came back three weeks later with zero flats and a tire still holding air. What got me was the time math, I spent 40 minutes patching and swapping his tube that first day, and the tubeless job took 15 minutes start to finish. I still run tubes on my commuter because I am stubborn, but I have converted 9 customer bikes this month and not one has come back leaking. Has anyone else had a tire that refused to seat even with a compressor, and what got it to pop?