>>134182Warranty, quality control, product testing, engineering, geometry.
Although I agree with the manufacturing process side of things, there are something brands offer that others simply do not.
BB95 allowing for those oversized downtubes, DRCV and ABP on the full suspension is amazing, G2 geometry on the 29er makes for an amazingly well handling bike.
Trek warranty is no joke either, saw it first hand with a guy whose frame broke on an older 2001 model bike last year, they sent a replacement frame but due to the time difference half of his kit wouldn't fit the bike, dealer explained it to Trek, Trek sent him out a whole new bike.
That's the confidence you pay for.