I have a valid prescription and have been properly fitted with the Acuvue before. I was wondering if anybody gets their lenses online and if it is cheaper that way?

I pay .99 for the Acuvue Oasys w/ Hydraclear plus box of 6 and I pay .99 for the Acuvue Advance Astigmatism box of 6 lenses from Walmart. Total of .60 for both eyes.

Thanks for your advice.