Possible to get Verizon Wireless smartphone with cheaper data plan?

I really want a Verizon smartphone, as in a Droid or something, but the data plan is $30 a month. I am 16 and my parents won’t pay for it, and I don’t make enough with allowance (at least with having some left over). I was wondering if anyone could give me ideas that might actually work as to how I could persuade them or somehow get a smartphone but with a data plan cheaper than $30 a month. Thank you.