Ye, so.. i curently have 2m credits on my main and 300k on my alt. And that is without farming dailys or even selling things on GTN. If the repairbills were any lower i would probably have around 4m now...
Besides, many people are still leveling and haven't hit 50 yet and if im not completly wrong things that sell for 20k credits now would be worth atleast twice as much in a month or two.
And this isnt wow where 1000 credits is the same as 1000 gold.
-> Repairbills are fine