There is no standard behind the phrase. It means whatever the venue saying it wants it to mean, and the range is enormous. One venue's all-inclusive is a room with chairs. Another's is chairs, linens, staff, bar, coordination and a champagne toast.
The fix is not to distrust the phrase. It is to replace it with a list.
The list
- Tables and chairs for my full count? Including the ceremony chairs, which are frequently a separate rental.
- Who sets the room, and is it set before I arrive? If you are setting it, that is hours of your wedding morning.
- Who turns it between ceremony and dinner? And does that cost anything?
- Is there a coordinator, is it a named person, and do I meet them before the day?
- Bar - in-house or bring your own? And if in-house, what is the per-guest floor?
- What time does the getting-ready room open?
- Parking for my full count, on site?
- What is quoted separately - tax, gratuity, service charge, security?
- What happens at the end, and who does it?
Nine questions. Ask them at every venue you tour and the comparison stops being about vibe.
Ours, for the record
Exclusive use of the property for the date, tables and chairs for the full count, the room set before you arrive, an on-site planner, day-of coordination, in-house bartenders, a champagne toast, the fireplace lit on request, parking for every guest, wheelchair access throughout, and WiFi. Bar service and rentals are quoted separately, and tax and gratuity are separate lines.
The full list lives on the rates page, above the prices rather than below them, which is deliberate.
The trap in the other direction
All-inclusive is not automatically better. If you have a caterer you love and a venue that mandates its own, inclusive is costing you the thing you cared about. Decide which parts you want to control, and buy the venue that leaves those open.
Not sure which parts matter to you yet? Walk a property - it is a much faster way to find out than a spreadsheet.