Dip dyes, colour melts, balayage, ombre = All terms that clients ask us for that they didn't use to when we opened 3 years ago.
Maybe the trend for darker roots has been caused by our country's economic situation, it allows us to stretch out the time just a little more between appointments! You can still see the root growth, but it blends in more!
Ironically then perhaps getting these colours is more expensive than a regular colour. The level of skill of application, the amount of colour and time it takes to complete all mean it costs more than just getting your roots blended in. Hair is your ultimate accessory though, so if you can afford it, you probably won't regret it!