Interesting subject without a simple answer I reckon as cool doesn't have to be expensive or boutique, just as expensive doesn't make something cool.
Yeti are probably pretty close to having a similar rep, always been expensive, probably still pretty cool.
Santa Cruz less so, as these days they have shifted position from pretty cool upper mainstream to mega money jewellery. I don't think they are cool these days, they have become a status symbol. Yeti are as well, but always were so can carry it off.
Orange? I love em, rode them bitd, ride them now. I would have said they were cool when Lester and Steve still owned them but since they sold, prices went up and they seem to really divide opinion. Cool to people who own them but there are plenty of people who think the opposite.
Fat Chance? I think the new ones are but they could do with updating and don't really have enough of a presence for anyone except us to pass judgement.
Trek/Specialized/Giant. Never were, nothing has changed.
GT/Marin? Nah, although Marin have made some great modern bikes, that no one seems to buy.
Pace? Had a real lull but the modern hardtails are sweet and are mentioned when cool, modern, steel frames are discussed. The full suss stuff less so.
Cotic? If you thought they were, you probably still do.