Recently I bought 3 pet with me, so I don't have to feed them often and I can swap them from time to time then I can save up a bit money on pet feeding. But I found that their happiness still go down pretty fast, one run of tomb 1/3 already gone, if you feed your pets that's 100 gp+ per run, and 99.9% of time your income from these runs can't cover the cost with those crappy white green blue drops. And I found that even with 3 pets, it is still inefficient, most of the time one of my pet run out of happiness and the other two in stable only restored less than 1/3. I play with them pretty often already. I know that this is the plan of STS to recycle all the gold back into their pocket so there will be more people buying gold with platinum, but the decrease rate of happiness is just ridiculous... if you calculate the gold you use on feeding with the price of platinum, you will find that the money you spend on feeding this visual pet one day is more than feeding a real one in real life. Hope Sts can slow down the decrease rate of happiness a bit in next update.