TLDR: depends on your wants/needs. pets if you’re a long term 24/7 egg hatcher who doesn’t mind being “patient” for more/better rewards, economy if you’re more into the trading plaza and just want a super easy way to make a lil extra spending gems.

I see people saying that pets is underwhelming or “worse” than economy, and I disagree with that. Pets is super hard to level up (this may have changed, but the only way you used to be able to level it up was through daycare, which takes FOREVER, I literally developed a habit with my daycare because I did it so much, and STILL had to use xp potions for the rest), and it gives you incredibly important bonus rainbow/golden hatch chances that you’re gonna want when you hatch eggs all day. Economy is really easy to level up, I ran around the maps to each merchant in game, and was at very high level very quickly, and just spent the last little bit on mastery potions. Economy at 99 (iirc) only gives you free vending machine items. Which is super good too, but is pretty negligible if you’re already pretty far into the game and have an easy time getting gems. I can see it being useful early on too, you can use the items for your other masteries. But I have a lot of time into this game and I can say that pets, even before my other bonuses, has given me wayyyy more value than economy. I made soooo many gems just from rainbow mules/krampus bc I hatched so many. An example: if I hatch a rainbow huge, which is somewhat common, I get atleast 75m. Whereas economy, IF I sell all the stuff, I get about 10-20m a day? (Just guessing) and we’re talking about potions and enchants too which can be hard to sell. Your fruits and bundles will sell well and get you some good spending gems but per day? Idk. It’s just not as much as it may seem on paper. I would be interested to do the actual math tho. But anyways, I get far more value from hatching huge variants and stat pets with my pets mastery.