We can all bang on all day about its worth this or it's not with that but at the end of the day it will sell for X amount maybe the full asking price maybe not. I can say this for example:
Jimmy's NIB jap version 870C sold for £601
NIB US version 870C sold for £280 on eBay
NIX91 car sold on eBay for £560
NIB Tomy intruder sold on eBay for £43 (buy it now he obviously didn't know what he had)
New built Jap version 870C sold on eBay for £400
Good condition CAT SWB sold on eBay for £450
You can see the variations on models of what sells and you can see what sits there for months ie the XLS that have been on ebay for about a year