Personally, I think scalp tattoos or micropigmentation will be ok for when you're still young. It would be like a permanent DermMatch until you get over 50 or so years old. By that time, you won't have enough hair and the tinted scalp will show.
I agree that putting on DermMatch daily is getting old really fast for me as well. Plus, when you go on trips, your friends would probably find out when you're using the bathroom and they just walk in on you. Dammit!