It's hard telling what something will bring on ebay when the demand is there.
I did a short stint as a subcontractor Dish Network Installer. I don't really like ladders or roofs, but it was pretty good money. The IRS tends to punish those who try to make their own way, so that was the end of that.
Anyhow, at some point in this fantasy, Dish came out with the "Dish 500", a single dish that received signals from two satellites. Since they had moved a bunch of channels around, most of their customers needed to upgrade to this dish to be able to receive all of their programming.
They offered a free upgrade kit, which included the new dish, and a little gizmo called a "SW21 switch". The SW21 enabled the receiver to choose between the two satellites to receive the chosen channel. Long story.
Anyway, each upgrade kit included two SW21s. Most customers had only one receiver and didn't want the extra switch, so it got thrown into the back of my truck. After the bed filled up with them, they would go into a box in the shed.
One day, long after my foolish attempt at self employment had been crushed by the government, I was cleaning out the shed and pulled out 3 or 4 boxes full of SW21 switches. I was carrying one toward the trash toter when I thought..."I wonder what these are going for on eBay?"
Well, it seemed that Dish had moved their Spanish programming to yet another satellite, and customers wanting the whole deal needed to erect an additional dish to get all the programming. this, of course required a SW21 switch. Dish, in their infinite marketing wisdom, had run out of stock during this crucial time.
They were selling like crazy on eBay. I ended up selling multiple lots of them, mostly to some dealer/installers in Puerto Rico. I made over $1,000 on three boxes of stuff that was headed for the dumpster.
Ya never know.