You are booking a boat and a crew
A day charter in Miami is a few hours with a captain, not a boat you drive yourself unless the listing says bareboat. Many operators include a captain and a deckhand. Catering, jet skis, and a longer route are usually extra. The only honest price is the one on the operator’s page for the date you want.
Sunset Exotics publishes a yacht inventory. Miami Yacht and YachtLife publish theirs. Vinto does not copy their boats onto this site and then invent a rate beside them.
Ask these questions
How many guests are legal on that hull, not how many you hope to bring. What time boarding starts, and what overtime costs. Whether fuel is included or billed at the end. Where the boat cannot go. What the weather cancellation rule is, in hours, not in a shrug.
Gratuity for the crew is customary and is not a surprise fee from Vinto. Ask the operator what they tell guests to plan for, and pay the crew directly if that is how the contract is written.
A charter is not a purchase
Nothing on a charter page transfers title. If someone offers you a “yacht for sale” in the same breath as a Saturday afternoon, those are different contracts with different licenses. Vinto does not broker the sale.