Iv heard from a few people that they got a free cellphone for being a longtime costumer of at and t , so not a bad question. Seems like you don't get anything from Verizon: (
Not true. Don't believe anyone who tells you that. The deals are the same at At&t, and it's a number 2 carrier for a reason. I don't even get me started on the customer service, which is rated worse than almost every other carrier in the business except sprint.
I was with Verizon up until 5 1/2 years ago, switch to AT&T, and now back to Verizon. You can not compare service quality, or customer service quality.