Discontinued items are sold at discounted prices here, as are ends of bolts and ends of coils. What you buy here you may not be able to get again.
"Bags of Bits" are a bit of a mystery! These are a new item and are similar to what we often have at conventions in the Bargain Bins. Bags of various related pieces in odd lengths at great prices. Add a bag to your shopping cart and for just a few dollars.