In my opinion, I think that this is a pretty nice hat, and a good robo-effect.

I say that the price should be risen, because:

-Robo keys are difficult to obtain from trading (meaning that I think that robo-effects in general should be more valued).

-5 exist

Also, the bud prices are going down very fast, whereas it used to be around 17 keys, now they're around 11 keys. In older trades, many have sold them for around 3 buds pure such as in this trade:

http://www.tf2outpost.com/trade/20552344

and this trade was made around 4 months ago, when buds were around 17 keys.

At this time, the hat would be around 51 keys.

http://www.tf2outpost.com/trade/22576867

In this trade, it was sold for 50 keys, and this trade was done 2 months ago when buds were around

16 keys. 50 keys/16 (bud price) = 3.125 buds

Currently, the currency for this hat remains outdated, being 3 buds, same as the time when buds were 17 keys. In the current bud currency, it would be 11 keys (bud price) x 3 = 33 keys.

To be equal to the previous values, the current bud price and the previous bud price should be the same in terms of keys. Meaning that this hat should be calculated in terms of keys, not buds: 3 x 16keys (previous bud price) = 50 keys, and 4.5 x 11 (current bud price) = 50 keys.

This price should be updated along with the ever changing bud price, since there isn't a factor of the hat's dying desire to be contributed to the decreasing price. This hat's price has pretty much only decreased because of the sudden drop of bud prices.

2 monthes ago - 50 keys

Now - 33 keys

^ Both 3 buds.