Is that 4 or 14?

General rule of thumb for top tier Vegas nightclubs is a minimum of 1 bottle per 3 people for the most basic table. At Marquee, this usually means outside by the Dayclub pools; it's actually not a bad spot. Bottle prices vary heavily depending on day of the week, DJ, etc. 6/11 is ATB which shouldn't be too bad; you'll probably be around the standard rate of $400-500/bottle plus tip. If you want a table on the main floor, obviously it's going to be quite a bit higher. In any case, the host will tell you the expected minimum, either in terms of bottles or total cost, when you make the inquiry.

If you want to be hearing the main floor DJ, make sure they don't throw you in the Library or the Boom Box.

As far as all those 'VIP' middle managers - obviously they will add their cut to your pricing, so you'll be paying more. What you get in return is a better chance that your table will be in a good spot and that you won't get bumped. Only you can decide if there is value in such an arrangement. I personally have never bothered with any of those companies. If you choose to go this route, make sure you check that the company is reputable and check the web for reviews.

Also, you have PM.