There are all sorts of good boots and it comes down to how much you want to spend. IMO a lot of those products available is only a way for companies to be making money. If all you do is basic flat work, polo wraps are just fine.
Once you get into jumping then it's a different story. At that point you want some really good quality protective equipment.
I don't care about the money but I think it will be better to buy something cheaper because only 15 years old and my legs still change and I don't want to buy boots for only 2-3 years.. I will buy something better but later