I am aware of some Genesis Firefly that sold for +12K and higher
before melee amps and right now someone is asking +16K. I think that a lot of what was driving the price of the Firefly is speculation about the price rising after melee amps. There is three problems with that logic:
1. There have been a TON of new blades that have looted, many of which have enough TT value for a long run unlike the cheap Arkadia blades that need to be repaired after killing a few creatures. One example of a good knife is the Ranked Combat Knife from Cyrene
2. The Ranked Combat Knife and other blades also take melee amps which means that now there are more blades that have usable DPS and DPP. That dilutes the market by a considerable amount.
3. The prices of melee amps, to everyone's surprise, have not crashed.
Here is the weapon compare of the Ranked Combat Knife vs the Firefly.
The Firefly clearly has a DPS and eco advantage plus it can take a Trauma VI however most people who own a Trauma VI also have the peds and probably the skills for a higher level blade.
Both the Ranked Combat Knife and the Firefly are maxed at level 38. With the Trauma IV, both are doing similar damage and dps with a small advantage going to the Firefly.
There still is a huge disparity in the cost difference of the Ranked Combat Knife and the Firefly. The Firefly shouldnt be selling for twice or three times as much as the Ranked Combat Knife..
I think 5K is too low for a Ranked Combat Knife and 12K is too high for a Firefly. Its only a matter of time before the market recalibrates and these cost disparities start to go away.
Hopefully that helps