Why was this even worth 5 Buds?

Sellers:

http://www.tf2outpost.com/trade/21664558 2 Buds, 4 Months unsold(Probably changed B/O, but had a willing buyer at 2 and 2 other adds so I'll call outlier)

http://www.tf2outpost.com/trade/21237884 3 Buds, 5 MONTHS unsold

http://www.tf2outpost.com/trade/23622529 3 Buds, 1 Month unsold(alt of seller above?)

http://www.tf2outpost.com/trade/23937452 3.3 Buds, 3 Weeks unsold

http://www.tf2outpost.com/trade/23859067 4.4 Buds, 4 Weeks unsold

http://www.tf2outpost.com/trade/24284906 4.5 Buds, young

http://www.tf2outpost.com/trade/17272467 4.5 Buds, 11 MONTHS! unsold

http://www.tf2outpost.com/trade/23735977 4.9 Buds, 1 Month unsold

Sold for 28 Keys(2.5)

http://backpack.tf/profiles/76561197983229381?time=1417593600 -> http://backpack.tf/profiles/76561197983229381?time=1417852800

Sold with a Disco Beat Down Hive Minder(1.8 with Overpay) for a Flaming Lantern Attendant(4.5 with Overpay)(2.7 Total)

http://backpack.tf/profiles/76561197999669542?time=1416556800 -> http://backpack.tf/profiles/76561197999669542?time=1416655923

Two sales, 2.5-2.7 should be fine.

Additional Proof/Counter-Proof/Constructive Criticism/Feedback is always appreciated.