What to look for in buying a new snowboard?

I'm want to buy a new snowboard since it's when all the stores like JOEs are selling them cheap but i don't know what to look for in a snow board. can anyone help? How do I know if it's a good quality snowboard that will fit my style, and if not at JOEs where can I get one? I want a snowboard that is on the more flexible side where I can do things like ollies and ers, and is more freestyle but still has good speed and control.... it sounds pricey but I would want to get just a decently priced one not too expensive.