yeah,peoples cars get dented and scratched every day and people cant live with it! so why should a bike be any different. its the shell out i suppose.a £150 spent on a car paint repair is viewed as not a lot.but a lot for a bicycle.personally i dont trust those sales pitches id rather recommendations .
anyway im all for a half decent botch up! and wax it. so good luck,and if you get the result you were after
and not too expensive fair play.