What comes after yellow belt?

Quicksale at 1 bud:

http://www.tf2outpost.com/trade/24283948 Sold in 2 days.

Sellers at 1.8 buds:

http://www.tf2outpost.com/trade/24100994 2 weeks old, frequently bumped.

http://www.tf2outpost.com/trade/24297252 1 day old, fairly bumped.

Unsolds at 2 buds:

http://www.tf2outpost.com/trade/24246572 5 days old, frequently bumped.

Everything else is being sold in sets. At time of posting, one seller is selling a Vintage Concheror for 1.7 buds in the classifieds. Also, just wanted to point out that the age of the trades above are at time of suggesting. Any additional proof, counter proof and constructive feedback is welcome.

p.s. Not sure whether I need sales or not, but since it's not an Unusual, I probably don't need 'em. Correct me if I'm wrong, though.