A VIP table is not simply a more expensive general admission ticket. It is a reservation for an allocated area, usually with defined capacity and drinks or minimum-spend conditions. The offer may be priced per group, per category or in another way. Ask whether admission for all guests is included and what extra charges may apply.
If you want to remain together throughout the night, a table may suit the group. If you prefer to move around and each person pays separately, tickets can be more convenient. Either way, get the exact written terms for that date before deciding what represents value.
A ticket with an included drink is not the same product as a VIP table, and 'priority access' may have a narrower meaning than people expect. Read what is expressly included rather than inferring benefits from the price. If a mistake is made, refer to the organiser's actual change and refund conditions before purchasing replacements. For groups considering a table, request a separate quote identifying the area, guest capacity and drinks agreement. The useful question is not simply whether advance tickets are cheaper, but whether the chosen option matches your arrival plans, budget and expectations for the night.