[HECnet] Circuit costs (again!)

After having my links up and running a couple of days now (and they work fine), I've come to realize that if we want to have a somewhat efficient topology, we need to agree on circuit costs. Now, that said, in todays internet world, network speeds are fast enough that this isn't really a big problem. So if people don't want to, I'm okay with that. But otherwise we should try and use some agreed upon scheme for setting costs on circuits. The best suggestion I've seen so far is to base it on ping times. Would people be willing to adopt this and implement it all over the place for level 2 routers? Because, if not everyone agrees, then I'm wasting my time here. :-) The exact cost scale we can discuss, if we agree on doing it. But it needs to be pretty much used by everyone, or else it's just a waste of time and energy.