You should get a Leopard gecko because they are a great beginners pet.
You should feed your gecko about 5 prey items every two days if its an adult. The prey should be no larger than the width of the geckos head. If the gecko is a Juvenile it should be fed every day.
I'm not sure of the cost because everywhere is different but you usually get one dozen crickets in a bag or case.
I prefer to feed my gecko meal worms because they last longer than crickets and you usually get 100 per case. I've studied the growth of Leopard geckos by feeding them different prey items and feeding them meal worms increases their weight and growth. I think crickets are a pain to deal with and they smell. Also, you have to remove the crickets that your Gecko doesn't eat and as for meal worms you just have to keep them in a bowl. You may also feed them wax worms as a treat but not as a staple diet because of the amount of fat they contain
DO NOT USE SAND FOR A LEOPARD GECKO as this could cause impaction and your Leo could die.
You should clean your Leos cage every three weeks and remove its waste every two days and change the water everyday.
Be sure to get a UTH (under tank heater) so that you Leo may digest its food properly cause reptiles need heat to digest their food. DO NOT GET A HEAT ROCK as they may burn your lizard.
The temperature your Gecko should be at is about high 80's during the daytime and mid 70's at night time.
Leopard geckos are nocturnal animals and come out to feed at night.
The nice thing about Leopard geckos is that they go to the bathroom in one spot only.
The minimum requirements for a Leos habitat is a ten gallon take because they may live in that take for their life.
NEVER HOUSE TWO MALE LEOPARD GECKOS together because they will fight to the death.
You should house leopard geckos on paper towels, newspaper, and reptile carpet. Always avoid loose substrates.
Leopard geckos are not like other lizards needing UV light and they should get their calcium from their food being dusted and you should keep a calcium dish only filled with calcium just in case.
Leopard geckos rarely bite and if they do they will not make you bleed and the bite will not hurt but it might just shock you.
Things you'll need is:
Two hiding logs (1 for warm side and 1 for cold side)
two small bowls (1 for food and 1 for water)
Under tank heater
thermometer
heat lamp (with a normal house bulb)
Reptile Calcium
Reptile Vitamins
If you have anymore questions message me