Actually one of the surprising big ticket items, if you use any decent kind of internal wiring, is the 80 FEET of wire they take!! Even with my relatively inexpensive Reality wire that might be $1k+.
Don't feel bad Tom, someone asked me if I intended to wire my set with Silkworm wire......it would be about $19,000 for me to do that!!

Uhmm, don't think I'll be opting for that upgrade.....
John