An enterprising eBay seller is offering a 1974 Intel IC chip (C3002 3002) for sale on eBay for more than $4,000.
While I know certain vintage IC chips are collectible and sell for significant dollars, I sense this chip price might be a tad aggressive. According to the seller, it is priced as it is, "due to the age of this item" and because it is "...rarely found because of the complexity and cost of building bitslice circuits."
You can judge for yourself.
To own it, click the link provided and buy now.