Nah not built to be sold , built to meet the demands of the people who want the image without the cost .
Our crappy bikes of years ago lasted us as they were so simple , not much to go wrong on a basic bike that had been much the same for many decades before . Sure the geometry is a bit off and the tubes could carry gas around your home but it's hard to get that level of engineering that wrong . Add in some pivots , shocks , bushings , calipers , discs etc and your asking for too much technology than can be bought at that price level .
You could buy a competent bike for your £90 , just don't expect it to have the technology of the one that's ten times that amount because funnily enough it's that expensive for a reason .