This pets rarity?

[SmokyOni]

How can I tell if this is a rare list pet?
I've heard of list pets and such, but never could understand them even with guides I looked over and explanations i've been given over the few years I've been on here.
Could someone tell me this pets worth/or if it's a list pet.

[Shinryu]

This pet is known as the Fireworks PPS (March 2009), and on the retired rares list guide it was ranked as a Tier 1 Advent List pet.
Going by rares list values, that means it was worth 3-4 mixed 2009 rares.

Since the list was retired relatively recently, a lot of people still do value it at this price, but do note that as the guide is discontinued, it will no longer receive updates, and the values of all the pets on it will change eventually.^^

[SmokyOni]

Does this mean it takes chance at being less valuable in the future, or more valuable? or time will tell/ it may go both directions?

[Shinryu]

In theory it could go either way.
As for my personal guess, I would predict that the value of the Fireworks PPS is likely to stay stable for a whole while.
Some pets' values were boosted by being on the list; there are a bunch of pets that were by themselves never particularly popular, but people paid what they did for them because they were Lists. The Fireworks PPS is (as far as I can tell) not an unpopular pet, but I've also never noticed any increased demand for it. It's a dog and a PPS, which gives it a safe place in a lot of people's collection goals.
But because it's overall relatively "unspectacular" (hey now, that's not meant to be a judgment, it's one of my fav 09 pets) I assume that most people will continue to trade it by its list value.
People don't currently have any incentive to hike up the price, as the pet is lacking notable demand, but they're also unlikely to just forget that it was a list pet and start accepting lower prices.

Worth noting, though, that while I don't see the price for the PPS dropping in the future, I see other 09 VRs eventually catching up to it in value. Many already have been VR for a whole while, lots of them are popular despite not being lists, and T1 was the lowest list tier.

That said, if you're looking for more opinions on this, feel free to ask around on the pet worth thread.
I'm making my guess as a regular user, so my guess is as good as everyone else's, but it's always good to get more input.