http://www.reddit.com/r/tf2trade/comments/1f2rs8/h_unusual_memory_leak_safensoundw_2_buds/

Someone jumped on this very quickly (at most 2 hours after the post was created) because it's no longer in his bp. The fact that this was purchased so quickly at 2 buds suggests it'd be possible to sell higher.

So does this, the only Memory SnS on Outpost: http://www.tf2outpost.com/trade/10974601

Offers include 2 buds pure (declined), a Blizzardy JuJu (2.5), and others only slightly lower.

If and when that Outpost one sells for higher, the price can be adjusted, but for now this is a good range.