Buying your own note.

[William Wallace]

I'm pretty new to the rules and such of buying/selling notes, and I just had a question. You can go right onto fciexchange, and find NPNs that are being sold for huge discounts, sometimes under 5% of the principal owed. Out of curiosity, if you owe money, and know you're behind on your payments, what is stopping you from purchasing your own NPN at a discount, which you created with your own negative behavior, besides the threat of foreclosure?