5 month old price. Range needs to shrink. No one is paying 6 buds anymore. Here's proof!

Link 1: http://www.tf2outpost.com/trade/8426773

2 months old, buyout 6 pure

Best offer: 5 pure

Cauldron AA + Stormy Dragonborn (5.7 buds with overpay)

Link 2: http://www.tf2outpost.com/trade/10090666

1 week old, buyout 7 pure

Best offer: 5 pure (seller would add 7 keys if the offer was 6 buds)

Blizzard Luchadore + Stormy Dragonborn + 1 bud (5.3 buds with overpay

Link 3: http://www.tf2outpost.com/trade/10130222

1 week old, buyout 6 pure

Best offer: only one offer of a guy who wants to negotiate below 6 buds for it, so nothing here really.

Conclusion: Well, there are no offers at 6 buds, in unusuals or pure. There are people who are willing to pay 5 pure though, and there are a lot of unusual offers in between the price I set. This range seems to be what the sellers are considering when it comes to offers.