What are the advantages and disadvantages of having a reptile as a pet

As I have experience with snakes, most of what I say applies specifically to snakes, but can also apply to other reptiles.

Reptiles in general have low maintenance costs. However, they can have a high initial investment cost for tank and supplies, the larger snakes require very large tanks. Most reptiles don't require daily care, and with a self regulated setup, don't need care when you go out of town. They can go weeks without eating, but typically can be fed once a week, and likewise poop about once a week. You don't have expensive vet visits unless they get sick. Once a year checkups are usually all you need. There are no vaccines and expensive surgical procedures like spay/neuter. Unlike our furry friends, reptiles are on-allergenic. However, they can carry salmonella. They are also not cuddly like other pets. But with frequent handling they can become quite tame. Some reptiles are naturally docile, other take work, and some never will be tame. They don't require frequent feedings. If you get a reptile you have to be OK with feeding it items such as mice, rats, crickets, worms, etc.

There are some reptiles that novices should not get. This includes the very large snakes such as Burmese and Reticulated Pythons. Not only is there size dangerous for inexperienced handlers, but the space requirements become huge and they are expensive to feed because they require such large prey items. Also Green Iguanas are not for newbies. They require a diet of fresh fruit and vegetables on a daily basis. Box Turtles are also difficult. Green Anoles are very inexpensive but difficult.