1. Costs are ongoing

That guinea pig or rabbit may be inexpensive, but there are many other costs – some of them ongoing – to consider: you will need to buy a cage, grooming tools, food, a bed and toys, and you’ll be back every month to restock. Then there are annual vet fees for the duration of your pet’s life.
2. You're gonna need a bigger cage

Many cages and tanks in pet shops are overcrowded or smaller than is recommended, so don’t use them as a guide for the cage you buy. We justify small cages as the animals are small when we get them and don’t stay long.
3. Some pets come with hidden problems

Don’t be surprised if the pet we sold you has parasites, a respiratory infection or a more serious disease. Animals often won’t show symptoms until you get them home. So make sure you get certificates or written proof that vet examinations and vaccinations have occurred before you buy and get your animal checked out by a vet right away.