I have been highlighting my hair for years and I pay $75 every 2 1/2 - 3 months..My hair is dark blonde/light brown naturally and I add lighter blonde highlights to it..they wrap my hair in the foil to do it..and takes about 2 hours..total..
it is something you have to keep up with..or you are going to have roots to grow out and it will be noticeable til it all grows off.