That is a tough one. You can sometimes find a Century in better condition on ebay for about the price he wants for his, mind you there is shipping though. I dunno, I would probably stay away from it if it was me. Is he selling both the Century and the ceramic for $75 or is that an added $75 for the ceramic? Guy has some steep prices for incomplete goods.
a bit low on liquid and cracked cap - $40 IMO
I think someone is trying to rip you off / thinks his lamp is worth a lot more then it is as he has probably seen ones go for $60 and he would be right except they were probably in a lot better condition then this one.
Just tell him that it is for parts - the cap is bust, it needs a complete dump and refill. But yea I have to say the base is in ok condition, if he can give pictures of the ceramic and it is Lava World ceramic included in the price for $60 then that's a deal
For the lamp on its own 30-40 tops as its for parts really
$20 non significant parts lamp.
Stay away from that Century lamp! I collect them and that is one wasted lamp at ANY price. You can do much better on ebay. As the saying goes, "you only get what you pay for". Buying on Craigslist is a gamble anyway plus the lamp is totally shot. Also, this Century has a starlite base which has it's own light show, so why would you want that ceramic to cover it up?