I had to sell my $80 worth of obsolete hashlets on their market,
You actually didn't HAVE to do anything. You could have kept them. Also, you could have converted them to $12 stakers and sold them when they are available in the marketplace.
No, I really did. I was sold a product promised they would never be obsolete and it became obsolete. It became obsolete very quickly after buying it. I couldn't just let it sit there being obsolete. I had to do something about it.
I have to agree with WaffleMaster here, the hashlets that were "promised" to always be profitable aren't exactly what they've been touted to be. It's a bit of a sad situation with them at the moment.