Ink is right near Art Basel, Form Miami and a number of other fairs (and also spitting distance from Lincoln Road). It is a fair focused on printed art. At fairs past I have seen works by Louise Bourgeois and Jim Dine to artists just starting their careers. The fair has pieces that are pricey to be sure but there are also tons of affordable pieces for a variety of tastes.
Ink Miami is also a small manageable fair. You can go through it in fairly short order (and have a drink at the hotel bar). It is a great fair to pop into before or after visiting Art Basel at the Convention Center.