Personally, I do think ti rings are cool.
Light and durable but the robustness of these rings pose one particular, if uncommon, problem.
A local jewellery designer sold one to a friend of his that was a hardcore mountain biker. The biker took a nasty spill out on our world famous North Shore trails. His injuries included a broken ring finger. No big deal, right? Welp, they couldn't slide the ring off his busted finger (all bent outta shape and swollen) and they couldn't cut the ring either! Nothing the paramedics, or the hospital, had in their equipment inventory could cut through the ring!
You know what they had to do? They had to outsource the tool from another agency, maybe the fire department, to cut the ring. Let's just say the resolution was not convenient.
Even if the designer exaggerated the story it's still believable that a ti ring would pose more problems in that kind of scenario than other kinds of metal rings.
Just a side note to keep in mind. It's not life threatening but it probably made things very inconvenient.
Burton