The way I see if if u buy a house IRL it still costs you weekly and monthly Bill's, if the Royal navy purchases a new aircraft carrier it still costs the navy for the up keep of the ship, if u don't spend money on ur house it eventually falls apart, if the navy doesn't spend ooodles of money on a ship it falls apart and is eventually decommissioned,
If ED is supposed to be a simulator more than a game then its sticking to real life, it could be worse you could have to purchase more NPC crew to man said carrier and then you'd be paying a weekly crew wage bill in top of your up keep.
Why moan about something before you even get chance to try it out, do you tell a date you don't like her favourite restaurant even tho you never eaten there?
Personally i never found the fleet carrier a must have item.
Royal Navy buys the aircraft carrier and maintains it, not the captain through money brought in by taxes. With the house situation, people arent restricted to passing over cash to each other rather than buying random stuff and dumping in front of them.