Capital ships are part of Freelancer. People can complain about them, whine about them and generally be pissed about them but you have to deal with them. The word capwhore is less deserved than say, bomberwhore. That would be a more accurate representation of things.
Then again, people say Freelancer was not made for capital ships.
To which I say, stop being silly and learn to balance properly. I came from a mod dominated by capital ships simply because we didn't have the player base to fill up our bombers and fighters. Plus commanding an VSD MKI and unleashing a barrage of missiles against the pathetic MC-40s (They were so ugly..) while a giant fleet battle rages around you involving all range of ships is something that I will always love.
In regards to prices, what's the point in upping them? If someone wants a capital ship, they will get it. I fly mainly capital ships simply because I find it strange how a single lone fighter can traverse Sirius without ever stopping once. Plus I like big ships, the one in my sig is oh so purty ingame (Which is where the screenshot is from)