Helping @kururu post this since this is discussed by us both regarding the rare color group %s of some pets as well as the state of devolution potions.
Two things.

1. More incentive towards working for a rare color group on certain species for novelty purpose.

Some pixpets have really low color %, e.g:



However there's a lot of other pets a player can go for that are also magenta or cyan with much higher rates (e.g, why get a 1% cyan Royowl when you can easily get a 49% cyan Ursufuzz?)

I'd imagine getting a 1% magenta Ursufuzz or 1% cyan Royowl would be something for people to do once they've achieved all their other goals on the site, but with the current system it's difficult for a player to show off their prized rare pets. (Lack of good reason to actually go for them.)

Personally when I look at someone's profile and see an entire wall of pets, I'm not going to go look through them one by one to check out which ones are rare, which likely makes it hard for the users to show off their accomplishments.

I feel like the housing and placement system for furniture can help with this by allowing pets with low% colors to be able to find exclusive furniture (but with the standard slvl so it isn't gamebreaking). This rewards users who do decide to go after the low% colors.

This would probably be somewhat similar to the Abstract Art collections (super rare + low weight + color specific), but limited to certain pixpet only, so it would be less likely that future pixpet release would not clash with the intended purpose (exclusive furniture being limited to pixpet as opposed to weight/rarity/color)
If the exclusive furniture are not account-bound, lucky players who go for the rare pixpet colors are also able to make some extra income if they choose to sell the items to other players, which I'd imagine could be niche collectables to other players who may have also run out of things to do on the site.

If the exclusive furniture were also to be accountbound (sellback only), it'd be a way to allow users to show off their ownership of their pet even without displaying the pet in their home. (Especially since theres limited pet slots in the houses)

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2. State of Potion of Devolution

Potion of Devolutions currently require a the Bar + Potion of Evolution + Devolution Fruit Juice to craft. Currently Devolution Bars are a bit too expensive/tedious to make compared to just getting a new pet and evolving it.

Most evolving pets appear to be relatively easy to find or comparatively cheap to pick up from auctions. Most don't seem to exceed 50pc in cost, compared to Bars that seem to go for 250+ pc, plus the Potion of Evolution that go for 80+ pc-- both of which are required to devolve a pixpet.

While levelling the pixpet to the evolvable level is a bit of a time sink, it might still be more worthwhile overall to re-level a pixpet via hoards (earning materials, pixcoins, etc) than sink additional 300+ pc into an additional Bar + Potion of Evolution for devolving.

The only reason I can see anyone using Potions of Devolution is probably if they are attached to the pixpet's ID or birthdate, and not all players may feel the attachments so that lessens the demand for Potions of Devolution further.

Suggestion would be to make Potion of Devolution easier to obtain, or maybe make a universal devolution bar instead of individual species specific devolution bars.

(Note that all prices in this post are estimates from the auction house.)

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TLDR; suggesting perk for rare color pets (exclusive furniture) and suggesting nerf for things required to devolve pets.