It honestly depends on your servers economy, which is why I have a bone to pick with Biowares pricing scheme, which seems to be based off the old fatman and its high pop economy.
See, servers with less players, like Gav Daragon on Oceania for example, have a poorer economy. Example, 750,000 on Gav Daragon is a LOT of money, and not easily gained. Simply because the market lacks Sellers and Customers to feed the money through. So for something like the legacy items which can cost in the millions, it's damned near impossible to earn the money easily, and you generally don't want to drop a cool million on something that is just a show off item.
I don't think it matters what server you're on, the fact that you have to grind out legacy level 20 and spend almost a mil credits to get cool, exclusive looking deal is kind of silly in my opinion. Your dues should have been paid already when you hit legacy 20.