I cleaned up a portion of the warehouse to get some lunch money Friday. I estimated 1400 pounds (14 Milk crates, half full @ about 100# each).
I thought the price was 10 cents a pound and I was thinking it wasn't worth the effort. Turns out it was 1600+ pounds @ 30+ cents and I walked out with 530 bones! I cut all the lead wires off and got another $30. I'm not sure that was a productive use of time but.....If you have a place for them, old ballasts = lunch money.
It flattened out my ride a bit. It felt like I was pulling a trencher/trackhoe.