Why are front end rebuild kits so expensive??

I still want to know what this $600 kit was and what all it included. I was looking again today, most of them are around $250 with almost everything, and minus a pitman arm. I'm still going to piece mine together for less with good parts.

Here is one on eBay but I believe it was the same on Classic Industries or somewhere (some times I've looked so many places for so many parts, I can't keep it all straight):
http://www.ebay.com/itm/290945211487?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649

Thanks so much for your help ... I'd love to see the ones for $250