Pricing problem... Relatively cheaper compared to alternatives but causes concerns on customer side

this product

Today, I made a call with one of our prospects and he asked why our product is $99/m while other similars start from $700/m and also gets commission from sales... I said it's meaningless to charge hundreds or thousands per month and also get a commission. I said we put a straightforward pricing and decided to play on the long tail side of the market. That's why it's $99/m I said. But then he said that this "cheap" pricing has caused a huge concern on the security side... What would be your answer to this question if you were me...