i know that mac, bobby brown, etc brushes are popular, but for my sensitive skin there are no brushes better than trish's. yes, they cost pretty penny, but you will never-ever have to buy another brush. i do own several of the highest rated mac brushes and every time i try to use them, i have to stop and go back to my trusted tm brushes. and every time i do that, i ask myself why did i ever bothered to stray from the greatness that is tm :)
of all trish's brushes i own (and i own what seems like most of them LOL) this little wonder #29 is the one i use daily. it is the work-horse of eye makeup and is up to any task you throw its way. simply wonderful. and btw, it never scratches like mac brushes.
unless yours gets lost you will never have to replace it. ever!