Not really interested in the Royals personally, however I do see the benefit in having them. I think they're a good thing for our country and the way we handle/use them is right. The queen has been one of the most constant and reliable figures in our diplomatic relations with other countries since her reign began in the 50's. If we stripped her as being head of state then the position would simply go to some equally privileged toff who wasn't under the same scrutiny as her.
The Royals are an insight into our past, how our country came about and a reminder of where and what we came from. I think it's EASY to say "nah they get a free ride, get rid of em" and then the next day forget about it. I mean I understand the conflicting nature of the monarch in any capacity within a democracy, but it's not exactly like they have life free and easy is it? They can't go and wonder around the world splashing cash on women, drugs and taking advantage of their money without a care. Yes they never go without and will never face the same problems that average people face in life, however the same could be said of countless others in our society who slip under the radar and live the life of riley.
And beside all that, the fact of the matter is, the royals fascinate people the world over. They are some of the most influential people in the entire world. What UK politician could say the same? They're a living cultural asset that shouldn't be disregarded on a whim. If you take these assets out of the world, make all countries completely the same then the world becomes a less colourful and varied place - filled with men in grey suits.