IMO their 9V capability made them noteworthy as the only viable
cheap option for 2xLiIon / 3xCR123 configurations.
Lots of other decent-quality triples out there that can do 1xLiIon.
After a brief fling with a couple due to curiosity about their Nichia triple w/ 3xCR123, I went back to the tried-and-true 9V OR/TL triple.
Plus I don't have to worry about module failure lol - I read more than a few postings about ST Triples that died in the first 6-12 months IIRC.