Leopard Gecko!!

Question
I am proabably going to get a leopard gecko and i have a few questions(if thats ok). First, where do you get the crickets? i dont think the petsmart has them..i looked online and there wasnt any.  And on some food containers, it says for 'fruit eating geckos' and i was wondering if a leopard gecko could also eat foods like that.

another question is regarding the life expectancy.  I read they can live up to 20 years or more, but how long do they nomally live?

Thank you!

Answer
Are you sure there aren't crickets at Petsmart? If not, check Petco or order them online at www.reptilefood.com or www.petco.com
Leopard geckos are not fruit eating geckos, the are carnivorous/insectivorous.

As far as life span: I would say (if they are properly taken care of) between 10-20 years.