There's a lot of these and they don't seem that popular... These are all the recent trades I could find.

=====Sales======

1 earbud (Nov. 17th buds were 16 keys)

http://www.tf2outpost.com/trade/15753451 ---->

http://www.tf2outpost.com/trade/15778129

Orbiting Fire Brain Bucket + 1 key (~13-17 keys) with added key value = (~16 keys)

http://www.tf2outpost.com/trade/14928721

1 earbud (Oct. 15th buds were 17-17.5)

http://www.tf2outpost.com/trade/15030332 ---->

http://www.tf2outpost.com/trade/15040910

Bubbling Human Cannonball (1.4-1.5, 1.3 overpay? ~ Outlier anyway won't use)

http://www.tf2outpost.com/trade/15764382------>

http://www.tf2outpost.com/trade/16049071

======B/Os & Offers in currently Open Trades========

1 Bud B/O 2 weeks old

http://www.tf2outpost.com/trade/15849845

Offers:

N&B Noir + 4 keys = ~17 keys

B/O 12 keys pure, 15 keys in unusuals 2 hours old.

(Quicksell price, below is his earlier trade with B/O for 1 bud)

http://www.tf2outpost.com/trade/16172469

No Offers

++B/O (1 bud) 3 days old

++http://www.tf2outpost.com/trade/16114767

++No offers yet.

1 bud (or 19 keys) 2 hours old

http://www.tf2outpost.com/trade/16172271

No offers yet

++Older thread B/O of 1 bud (or 19 keys) 6 days old

++http://www.tf2outpost.com/trade/16016358

++Offer declined for Smoking L'Inspecteur (~15-17 keys)

---No B/O trades---

No B/O

http://www.tf2outpost.com/trade/14827121

Hide offer for orbiting fire pugilist protector (~13-15 keys) 1 week ago

Hide Offer for 10 keys 2 weeks ago

Open offer for stormy storm buckaroo (~13-17 keys) 1 month ago

Open Offer for 16 keys 1 month ago

No B/O

http://www.tf2outpost.com/trade/9498048

Offer for Orbiting Planets Medic Sack + 2 keys (~13 keys)

Hide/Denied offer for 16 keys 1 week ago

No B/O

http://www.tf2outpost.com/trade/12384744

====Analysis====

3 sales - Range = 16-17

The trades without B/Os have been open for months and don't help at all.

B/Os with 1 bud (Price now 18.5-19) don't get offers that match the B/O price.

A key range is needed for the suggestion because the bud sales were worth less in keys than the current bud B/Os.

Offers are all below 18 keys too.

======Conclusion======

Range should be 16-17 keys because of sales.

Offers are within that range.

B/Os are too high, no one has sold for 18+ keys (buds being 18.5-19)

The suggested current price is off:

-High end too high, no offers for 18 keys.

-Low end too low, there's offer for 16-17.

I used original values.