I've had my current skates for two years next February. They still fit and they aren't falling apart. The blades are getting chipped every now and then and the screws are coming loose. I can't tighten them very much because they are starting to tear up the leather on the bottom of the boot. The boots don't support my ankles as much as they used to. What I want to know is whether or not I should start thinking about getting a new pair?