A few years ago I won a Tilly rebuild kit as a door prize at a picnic or something like that. Not having a tilly and never planning on having one, I listed it on eBay. Back then the kit was available through the suppliers for like $15 bucks. I ended up selling it on eBay for $40. Made no sense to me at the time but what the hell...
Ebay is weird. Last year I was outbid on one of those snap-on wrenches for the head nut under the distributor. I think it was bid up to $60 bucks by the time it sold. So, I went to the next one listed in the search, which ended the next day, ended up being the only bidder and got it for under $20 bucks, including shipping.
-Tim