It depends on what you want to do with your magic...
What area of card magic do you like most? Do you like gambling moves? Then Foundations is a great place to start.I'm a card trick guy, and I have only been doing magic for 2 years.
If you are looking for big bang for your buck I'd check out the Daniel Garcia projects. There's a lot of card magic on there and it costs the same as a DVD like DecoyI'm a card trick guy, and I have only been doing magic for 2 years.