>>/52113/
From what I see: Every single groupset on the market is 12 speed for a long time, mtb groupsets are cheaper than road since you only have 1 shifter that's separated from the brake, no front derailleur, only a cheap small chainring. On road groups the shifter and brake combo makes up a big chunk of the total price and the big chainring is also expensive, mtb doesn't have that
Afaik on mtb most of the price comes from suspension, then frame, then wheels and the groupset is just an afterthought