The last successful price suggestion for this hat was 4 months ago, and the offers shown in this link shows that the current price listed is inaccurate. Keep in mind that there are only 4 of these hat effect combinations in existence.

http://www.tf2outpost.com/trade/8031156

This link provides us with the only one of the four Beanies with this effect on the market. All but one of the offers listed exceeds the current price for the hat. They are as follows:

-1 bud 16 keys pure (1.5 buds+) (rejected)

-55 keys in items with 25 pure keys (rejected)

-2 buds pure + sweets (rejected)

-2 buds 10 keys pure (2.4 buds) (rejected)

-Interchangeable offer of either $100 USD or 3 buds + sweets (current offer)