On a budget, skip Go Miami / Sightseeing Pass — the spend outweighs the payoff.
~$70–230 depending on tier
Can be real value if you're an attraction-cramming visitor — bundles big-ticket items (Frost, boat tours, Skyviews, hop-on bus) for less than buying separately. The catch: Miami's best things (beaches, neighborhoods, street art) are free, so the pass only pays off if you'd otherwise visit several paid attractions in a few days, and it pressures you to over-schedule.